Probleme bei IP Änderung

Tester

Hallo zusammen,

ich habe ein Problem und kann gerade nicht feststellen wo ich einen Fehler habe. Vielleicht habt ihr eine Idee für mich.

Meine Mailcow läuft auf einem Ubuntu 22.04 in einer Proxmox Umgebung bei Hetzner. Aktuell nutze ich eine Einzel-IP welche ich per MAC-Adresse der virtuellen Mailcow Maschine zuweise.

Seit kurzem beziehe ich über den vSwitch bei Hetzner IPv4 und IPv6 Adressen. Diese sind über eine Bridge angebunden.

Die neue Bridge habe ich mit einer neuen Netzwerkkarte in den Mailcow VM eingebunden. Per Cloud-Init habe ich nun die IPv6 Adresse dem Server zugewiesen, soweit funktioniert alles. Auch wenn ich die Einzel-IP deaktiviere kann ich über IPv6 den Mailserver erreichen, sowohl intern wie auch extern.

Im nächsten Schritt weise ich über die neue Bridge (vSwitch IPs) eine IPv4 Adresse zu. Der Server erkennt die IP. Auch ist die Web-UI von Mailcow darüber zu erreichen.

Das Problem nun, es lassen sich über die neue IPv4 Adresse keine Mails abrufen. Als Fehler kommt beispielsweise in Apple Mail:

Mail konnte zum Server „mail.meinserver.de" keine SSL-Verbindung über die Standardports herstellen. Vergewissere dich, dass dieser Server SSL unterstützt und dass deine Accounteinstellungen korrekt sind.

Ein weiterer Fehler lautet:

Zeitüberschreitung bei den Verbindungen zum Server „mail.meinserver.de" auf den Standardports.

Jetzt weiß ich nicht, ob ich einen Fehler bei Mailcow habe oder viel vorher schon bei der Bridge.

Hat jemand vielleicht eine ähnliche Konfiguration?

Mir fehlt gerade die Idee wo ich ansetzen soll.

DocFraggle

Also so wie sich die Meldungen lesen blockt irgendwas den Zugriff…

Tester Auch ist die Web-UI von Mailcow darüber zu erreichen.

Aus dem Internet zu erreichen oder lokal? Hat Proxmox noch irgendeine FIrewall?

DocFraggle

Hast Du bei Hetzner evtl auch die Firewall konfiguriert und die neue IPv4 Adresse dort vergessen?

Tester

DocFraggle

Habe es gerade überprüft, diese ist standardgemäß aktiviert, aber es ist alles per default erlaubt. Also keine speziellen Regeln.

Tester

DocFraggle

Eine Firewall in Proxmox ist nicht aktiv. Über IPv6 geht alles was über diese Bridge läuft. Bei IPv4 ist die Mailcow UI erreichbar. Wenn man beispielsweise SoGo aufruft, kann man sich anmelden aber es werden keine Emails angezeigt. Dies ändert sich wieder wenn ich die Einzel IP und/oder die IPv6 wieder einschalte. Rein über die neue IPv4 habe ich dieses Problem.

DocFraggle

Hmm, da kenn ich mich jetzt zu wenig mit Proxmox aus… den Mailcow Stack auf der VM hast Du neu gestartet nachdem Du die neue IP zugewiesen hast?

docker compose down
docker compose up -d

Tester

DocFraggle

Nein, habe ich nicht gemacht. Die VM habe ich mehrfach neugestartet. Müssen die Befehle unabhängig vom Neustart eingegeben werden?

Tester

DocFraggle

Leider gibt es keinen Unterschied. Gleiches Bild.

Was mir aufgefallen ist, dass wenn ich die IPv4 Adresse vom vSwitch nutze die VM beim booten um einiges länger braucht. Es bleibt an folgender Stelle länger hängen:

esackbauer

Tester Müssen die Befehle unabhängig vom Neustart eingegeben werden?

Ja!

Tester

Inzwischen habe ich das IP Problem in den Griff bekommen. Evtl. hatte es etwas mit der MTU Size zu tun.

Nachdem die Mailcow grundsätzlich läuft, kann ich aktuell keine Emails versenden.
Ich erhalte den Fehler Cannot start TLS: handshake failure. An der Konfiguration habe ich weiter nichts verändert. Emails kommen rein.

esackbauer

Tja ohne postfix logs wird das schwierig… Da steht sicher ein bisschen mehr drin, z.b. ob du einen relay host verwendest…

Tester

esackbauer

Sorry, hast recht.

Ich hoffe, das hilft.

mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:14 bde60cf94933 postfix/smtpd[569]: Anonymous TLS connection established from focus.ammc2021.ae[89.144.4.239]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:14 bde60cf94933 postfix/smtpd[569]: 96B0B7E61D: client=focus.ammc2021.ae[89.144.4.239] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:30 bde60cf94933 postfix/postscreen[391]: CONNECT from [104.244.78.227]:54500 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:30 bde60cf94933 whitelist_forwardinghosts: Look up 104.244.78.227 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:30 bde60cf94933 postfix/dnsblog[634]: addr 104.244.78.227 listed by domain wl.mailspike.net as 127.0.0.17 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:33 bde60cf94933 postfix/postscreen[391]: PASS NEW [104.244.78.227]:54500 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:33 bde60cf94933 postfix/smtpd[455]: connect from johnny.fullendoscopy.mx[104.244.78.227] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:34 bde60cf94933 postfix/smtpd[455]: Anonymous TLS connection established from johnny.fullendoscopy.mx[104.244.78.227]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:34 bde60cf94933 postfix/smtpd[455]: 3D4437E1A8: client=johnny.fullendoscopy.mx[104.244.78.227] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:36 bde60cf94933 postfix/smtp[469]: connect to ssl-tools.net[168.119.147.146]:25: Connection refused mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:36 bde60cf94933 postfix/smtp[469]: connect to ssl-tools.net[2a01:4f8:251:14ab::1]:25: Connection refused mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:36 bde60cf94933 postfix/smtp[469]: 87FC18176E: to=<check@ssl-tools.net>, relay=none, delay=3995, delays=3995/0/0.01/0, dsn=4.4.1, status=deferred (connect to ssl-tools.net[2a01:4f8:251:14ab::1]:25: Connection refused) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[384]: SSL_connect error to emig.freenet.de[2001:748:100:40::8:117]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[384]: DC1C77E553: Cannot start TLS: handshake failure mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[386]: SSL_connect error to emig.freenet.de[195.4.92.215]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[386]: 14F4C7E558: Cannot start TLS: handshake failure mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[384]: Verified TLS connection established to emig.freenet.de[2001:748:100:40::8:116]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:37 bde60cf94933 postfix/smtp[384]: DC1C77E553: to=<XXXXX>, relay=emig.freenet.de[2001:748:100:40::8:116]:25, delay=2368, delays=1167/0.05/1201/0.17, dsn=2.0.0, status=sent (250 OK id=1tPTkb-003f9i-MO) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/postscreen[391]: CONNECT from [217.72.192.73]:32803 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 whitelist_forwardinghosts: Look up 217.72.192.73 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/dnsblog[638]: addr 217.72.192.73 listed by domain wl.mailspike.net as 127.0.0.18 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/dnsblog[632]: addr 217.72.192.73 listed by domain list.dnswl.org as 127.0.5.0 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/dnsblog[639]: addr 217.72.192.73 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/dnsblog[639]: addr 217.72.192.73 listed by domain hostkarma.junkemailfilter.com as 127.0.0.5 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/postscreen[391]: CONNECT from [159.183.18.190]:33708 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/postscreen[391]: ALLOWLISTED [159.183.18.190]:33708 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:40 bde60cf94933 postfix/smtpd[471]: connect from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:41 bde60cf94933 postfix/smtpd[471]: Anonymous TLS connection established from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] to XXXXX: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:41 bde60cf94933 postfix/smtpd[471]: D75427E553: client=wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:42 bde60cf94933 postfix/cleanup[472]: D75427E553: message-id=<f44da091-3590-4220-f5f6-28XXXXXXX> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:42 bde60cf94933 postfix/cleanup[472]: D75427E553: milter-reject: END-OF-MESSAGE from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190]: 4.7.1 Greylisted, please try again later; from=<bounces+37025174-0c48-XXXXXX> to=<XXXXX> proto=ESMTP helo=<wfbtknbz.outbound-mail.sendgrid.net> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:42 bde60cf94933 postfix/smtpd[471]: disconnect from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 quit=1 commands=6/7 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:43 bde60cf94933 postfix/anvil[395]: statistics: max connection rate 2/60s for (smtpd:159.183.18.190) at Dec 22 22:41:07 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:43 bde60cf94933 postfix/anvil[395]: statistics: max connection count 1 for (smtpd:185.58.207.131) at Dec 22 22:34:45 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:43 bde60cf94933 postfix/anvil[395]: statistics: max cache size 20 at Dec 22 22:40:45 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:43 bde60cf94933 postfix/postscreen[391]: PASS NEW [217.72.192.73]:32803 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:44 bde60cf94933 postfix/smtpd[536]: connect from mout.kundenserver.de[217.72.192.73] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:44 bde60cf94933 postfix/smtpd[536]: Anonymous TLS connection established from mout.kundenserver.de[217.72.192.73] to XXXXXX: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:44 bde60cf94933 postfix/smtpd[536]: 838E07E553: client=mout.kundenserver.de[217.72.192.73] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:50 bde60cf94933 postfix/smtp[388]: SSL_connect error to mx00.gmx.net[212.227.15.10]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:50 bde60cf94933 postfix/smtp[388]: D8D707F046: to=<XXXXX>, relay=mx00.gmx.net[212.227.15.10]:25, delay=601, delays=0.57/0/600/0, dsn=4.7.5, status=deferred (Cannot start TLS: handshake failure) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/submission/smtpd[673]: connect from unknown[172.168.152.7] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/submission/smtpd[673]: improper command pipelining after CONNECT from unknown[172.168.152.7]: MGLNDD_167.235.82.110_587\n mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/postscreen[391]: CONNECT from [161.71.75.25]:47838 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/postscreen[391]: ALLOWLISTED [161.71.75.25]:47838 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/smtpd[393]: connect from mta12.c.rituals.com[161.71.75.25] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/smtpd[393]: Anonymous TLS connection established from mta12.c.rituals.com[161.71.75.25]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/smtpd[393]: C81A180005: client=mta12.c.rituals.com[161.71.75.25] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/submission/smtpd[673]: lost connection after UNKNOWN from unknown[172.168.152.7] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:44:56 bde60cf94933 postfix/submission/smtpd[673]: disconnect from unknown[172.168.152.7] unknown=0/1 commands=0/1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:00 bde60cf94933 postfix/postscreen[391]: CONNECT from [91.211.241.39]:29175 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:00 bde60cf94933 postfix/postscreen[391]: ALLOWLISTED [91.211.241.39]:29175 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:00 bde60cf94933 postfix/smtpd[614]: connect from pmta41039.emsmtp.com[91.211.241.39] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:00 bde60cf94933 postfix/smtpd[614]: Anonymous TLS connection established from pmta41039.emsmtp.com[91.211.241.39]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:01 bde60cf94933 postfix/smtpd[614]: 0D9D58043D: client=pmta41039.emsmtp.com[91.211.241.39] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:01 bde60cf94933 postfix/cleanup[619]: 0D9D58043D: message-id=<0.0.48.2CA.1DB545880228576.0@pmta41039.emsmtp.com> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:02 bde60cf94933 postfix/smtpd[402]: timeout after DATA (0 bytes) from mailb-dc.linkedin.com[108.174.6.155] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:02 bde60cf94933 postfix/smtpd[402]: disconnect from mailb-dc.linkedin.com[108.174.6.155] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: CONNECT from [212.6.174.132]:55003 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 whitelist_forwardinghosts: Look up 212.6.174.132 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: CONNECT from [212.6.174.131]:42077 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[635]: addr 212.6.174.132 listed by domain hostkarma.junkemailfilter.com as 127.0.0.5 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[635]: addr 212.6.174.132 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[631]: addr 212.6.174.132 listed by domain list.dnswl.org as 127.0.15.0 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 whitelist_forwardinghosts: Look up 212.6.174.131 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: CONNECT from [212.6.174.135]:38503 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 whitelist_forwardinghosts: Look up 212.6.174.135 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[634]: addr 212.6.174.131 listed by domain list.dnswl.org as 127.0.15.0 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[634]: addr 212.6.174.131 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[634]: addr 212.6.174.131 listed by domain hostkarma.junkemailfilter.com as 127.0.0.5 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[687]: addr 212.6.174.135 listed by domain list.dnswl.org as 127.0.15.0 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[687]: addr 212.6.174.135 listed by domain hostkarma.junkemailfilter.com as 127.0.0.5 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[687]: addr 212.6.174.135 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[640]: addr 212.6.174.132 listed by domain b.barracudacentral.org as 127.0.0.2 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[631]: addr 212.6.174.131 listed by domain b.barracudacentral.org as 127.0.0.2 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/dnsblog[691]: addr 212.6.174.135 listed by domain b.barracudacentral.org as 127.0.0.2 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: PASS OLD [212.6.174.131]:42077 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[618]: connect from mx-ca-131.xqueue.com[212.6.174.131] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: PASS OLD [212.6.174.132]:55003 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[471]: connect from mx-ca-132.xqueue.com[212.6.174.132] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/postscreen[391]: PASS OLD [212.6.174.135]:38503 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[402]: connect from mx-ca-135.xqueue.com[212.6.174.135] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[471]: Anonymous TLS connection established from mx-ca-132.xqueue.com[212.6.174.132]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[402]: Anonymous TLS connection established from mx-ca-135.xqueue.com[212.6.174.135]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[618]: Anonymous TLS connection established from mx-ca-131.xqueue.com[212.6.174.131]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[471]: 7D26B800C9: client=mx-ca-132.xqueue.com[212.6.174.132] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[402]: 80C7881540: client=mx-ca-135.xqueue.com[212.6.174.135] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:14 bde60cf94933 postfix/smtpd[618]: 8759A815C1: client=mx-ca-131.xqueue.com[212.6.174.131] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:15 bde60cf94933 postfix/postscreen[391]: CONNECT from [13.111.16.169]:43125 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:15 bde60cf94933 postfix/postscreen[391]: ALLOWLISTED [13.111.16.169]:43125 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:15 bde60cf94933 postfix/smtpd[698]: connect from mta2.a.mango.com[13.111.16.169] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:16 bde60cf94933 postfix/smtpd[698]: Anonymous TLS connection established from mta2.a.mango.com[13.111.16.169]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:16 bde60cf94933 postfix/postscreen[391]: CONNECT from [178.251.229.9]:53838 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:16 bde60cf94933 whitelist_forwardinghosts: Look up 178.251.229.9 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:16 bde60cf94933 postfix/smtpd[698]: C0D0C816DB: client=mta2.a.mango.com[13.111.16.169] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:19 bde60cf94933 postfix/postscreen[391]: PASS NEW [178.251.229.9]:53838 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:20 bde60cf94933 postfix/smtpd[703]: connect from mail.servercow.de[178.251.229.9] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:20 bde60cf94933 postfix/smtpd[703]: Anonymous TLS connection established from mail.servercow.de[178.251.229.9]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:20 bde60cf94933 postfix/smtpd[703]: 3A92D7FC8C: client=mail.servercow.de[178.251.229.9] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:20 bde60cf94933 postfix/cleanup[704]: 3A92D7FC8C: message-id=<0c638f8205c2fd1b93d283274d5a54dd@swift.generated> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:21 bde60cf94933 postfix/qmgr[375]: 3A92D7FC8C: from=<community@mailcow.email>, size=2216, nrcpt=1 (queue active) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:21 bde60cf94933 postfix/smtpd[703]: disconnect from mail.servercow.de[178.251.229.9] ehlo=2 starttls=1 mail=1 rcpt=1 data=1 quit=1 commands=7 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:21 bde60cf94933 postfix/lmtp[705]: 3A92D7FC8C: to=<XXXXXX>, relay=dovecot[fd4d:6169:6c63:6f77::b]:24, delay=1.3, delays=1.3/0.01/0/0.02, dsn=2.0.0, status=sent (250 2.0.0 <XXXXX> 4PD8HXGIaGf5AAAAqpTy/Q Saved) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:21 bde60cf94933 postfix/qmgr[375]: 3A92D7FC8C: removed mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 postfix/postscreen[391]: CONNECT from [185.131.211.92]:56073 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 whitelist_forwardinghosts: Look up 185.131.211.92 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 postfix/postscreen[391]: PASS OLD [185.131.211.92]:56073 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 postfix/smtpd[703]: connect from eagle5-92.ebulteni.com[185.131.211.92] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 postfix/postscreen[391]: CONNECT from [185.131.211.98]:39922 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:23 bde60cf94933 whitelist_forwardinghosts: Look up 185.131.211.98 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/smtpd[703]: Anonymous TLS connection established from eagle5-92.ebulteni.com[185.131.211.92]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/postscreen[391]: PASS OLD [185.131.211.98]:39922 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/smtpd[712]: connect from eagle5-98.ebulteni.com[185.131.211.98] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/smtpd[703]: 3195081795: client=eagle5-92.ebulteni.com[185.131.211.92] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/smtpd[712]: Anonymous TLS connection established from eagle5-98.ebulteni.com[185.131.211.98]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:24 bde60cf94933 postfix/smtpd[712]: 8778581831: client=eagle5-98.ebulteni.com[185.131.211.98] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:44 bde60cf94933 postfix/smtpd[565]: timeout after DATA (0 bytes) from sepehr.pws-dns.net[185.120.220.75] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:44 bde60cf94933 postfix/smtpd[565]: disconnect from sepehr.pws-dns.net[185.120.220.75] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:46 bde60cf94933 postfix/smtp[621]: SSL_connect error to emig.freenet.de[2001:748:100:40::8:116]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:46 bde60cf94933 postfix/smtp[621]: DDF838026C: Cannot start TLS: handshake failure mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:48 bde60cf94933 postfix/smtpd[566]: timeout after DATA (0 bytes) from sx1156.virtual-expo.com[217.174.192.156] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:45:48 bde60cf94933 postfix/smtpd[566]: disconnect from sx1156.virtual-expo.com[217.174.192.156] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:09 bde60cf94933 postfix/smtpd[449]: lost connection after DATA (0 bytes) from ih14.mta.exacttarget.com[13.111.68.14] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:09 bde60cf94933 postfix/smtpd[449]: disconnect from ih14.mta.exacttarget.com[13.111.68.14] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:35 bde60cf94933 postfix/smtp[468]: SSL_connect error to mx02.mail.de[2001:868:100:600::211]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:35 bde60cf94933 postfix/smtp[468]: AAF737F1AA: to=<XXXX>, relay=mx02.mail.de[2001:868:100:600::211]:25, delay=1659, delays=458/0.12/1201/0, dsn=4.7.5, status=deferred (Cannot start TLS: handshake failure) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:40 bde60cf94933 postfix/smtpd[490]: timeout after DATA (4041 bytes) from kackar.isbank.com.tr[213.161.144.82] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:46:40 bde60cf94933 postfix/smtpd[490]: disconnect from kackar.isbank.com.tr[213.161.144.82] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:11 bde60cf94933 postfix/postscreen[720]: CONNECT from [185.131.211.91]:52635 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:11 bde60cf94933 whitelist_forwardinghosts: Look up 185.131.211.91 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:12 bde60cf94933 postfix/postscreen[720]: PASS OLD [185.131.211.91]:52635 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:12 bde60cf94933 postfix/smtpd[565]: connect from eagle5-91.ebulteni.com[185.131.211.91] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:12 bde60cf94933 postfix/smtpd[565]: Anonymous TLS connection established from eagle5-91.ebulteni.com[185.131.211.91]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:47:12 bde60cf94933 postfix/smtpd[565]: 89C557E15C: client=eagle5-91.ebulteni.com[185.131.211.91] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/postscreen[720]: CONNECT from [89.144.15.30]:41789 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 whitelist_forwardinghosts: Look up 89.144.15.30 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/dnsblog[735]: addr 89.144.15.30 listed by domain bl.suomispam.net as 127.0.0.3 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/postscreen[720]: PASS OLD [89.144.15.30]:41789 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/smtpd[490]: connect from stem.oceanlinkship.com[89.144.15.30] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/smtpd[490]: Anonymous TLS connection established from stem.oceanlinkship.com[89.144.15.30]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/smtpd[490]: E2C887E07B: client=stem.oceanlinkship.com[89.144.15.30] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:08 bde60cf94933 postfix/cleanup[561]: E2C887E07B: message-id=<0.0.0.410.1DB54B2ED238594.0@stem.oceanlinkship.com> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:17 bde60cf94933 postfix/cleanup[561]: E2C887E07B: milter-reject: END-OF-MESSAGE from stem.oceanlinkship.com[89.144.15.30]: 4.7.1 Greylisted, please try again later; from=<info@oceanlinkship.com> to=<XXXXXXX> proto=ESMTP helo=<stem.oceanlinkship.com> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:17 bde60cf94933 postfix/smtpd[490]: disconnect from stem.oceanlinkship.com[89.144.15.30] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 quit=1 commands=6/7 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:57 bde60cf94933 postfix/postscreen[720]: CONNECT from [159.183.18.190]:31666 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:57 bde60cf94933 postfix/postscreen[720]: ALLOWLISTED [159.183.18.190]:31666 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:58 bde60cf94933 postfix/smtpd[490]: connect from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:58 bde60cf94933 postfix/smtpd[490]: Anonymous TLS connection established from wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] to mail.XXXX: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:59 bde60cf94933 postfix/smtpd[490]: 1047A7E62B: client=wfbtknbz.outbound-mail.sendgrid.net[159.183.18.190] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:48:59 bde60cf94933 postfix/cleanup[561]: 1047A7E62B: message-id=<f44da091-3590-4220-f5f6-286cfb5ea25c@gowandel.com> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:14 bde60cf94933 postfix/smtpd[569]: timeout after DATA (0 bytes) from focus.ammc2021.ae[89.144.4.239] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:14 bde60cf94933 postfix/smtpd[569]: disconnect from focus.ammc2021.ae[89.144.4.239] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:34 bde60cf94933 postfix/smtpd[455]: timeout after DATA (0 bytes) from johnny.fullendoscopy.mx[104.244.78.227] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:34 bde60cf94933 postfix/smtpd[455]: disconnect from johnny.fullendoscopy.mx[104.244.78.227] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:37 bde60cf94933 postfix/smtp[386]: SSL_connect error to emig.freenet.de[2001:748:100:40::8:118]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:37 bde60cf94933 postfix/smtp[386]: 14F4C7E558: to=<XXXXX>, relay=emig.freenet.de[2001:748:100:40::8:118]:25, delay=7891, delays=6390/0.06/1501/0, dsn=4.7.5, status=deferred (Cannot start TLS: handshake failure) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:44 bde60cf94933 postfix/smtpd[536]: timeout after DATA (76 bytes) from mout.kundenserver.de[217.72.192.73] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:44 bde60cf94933 postfix/smtpd[536]: disconnect from mout.kundenserver.de[217.72.192.73] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:56 bde60cf94933 postfix/smtpd[393]: timeout after DATA (0 bytes) from mta12.c.rituals.com[161.71.75.25] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:49:56 bde60cf94933 postfix/smtpd[393]: disconnect from mta12.c.rituals.com[161.71.75.25] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:01 bde60cf94933 postfix/smtpd[614]: timeout after DATA (16322 bytes) from pmta41039.emsmtp.com[91.211.241.39] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:01 bde60cf94933 postfix/smtpd[614]: disconnect from pmta41039.emsmtp.com[91.211.241.39] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[402]: timeout after DATA (0 bytes) from mx-ca-135.xqueue.com[212.6.174.135] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[402]: disconnect from mx-ca-135.xqueue.com[212.6.174.135] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[471]: timeout after DATA (0 bytes) from mx-ca-132.xqueue.com[212.6.174.132] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[471]: disconnect from mx-ca-132.xqueue.com[212.6.174.132] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[618]: timeout after DATA (0 bytes) from mx-ca-131.xqueue.com[212.6.174.131] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:14 bde60cf94933 postfix/smtpd[618]: disconnect from mx-ca-131.xqueue.com[212.6.174.131] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:17 bde60cf94933 postfix/smtpd[698]: timeout after DATA (0 bytes) from mta2.a.mango.com[13.111.16.169] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:17 bde60cf94933 postfix/smtpd[698]: disconnect from mta2.a.mango.com[13.111.16.169] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:24 bde60cf94933 postfix/smtpd[703]: timeout after DATA (0 bytes) from eagle5-92.ebulteni.com[185.131.211.92] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:24 bde60cf94933 postfix/smtpd[703]: disconnect from eagle5-92.ebulteni.com[185.131.211.92] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:24 bde60cf94933 postfix/smtpd[712]: timeout after DATA (0 bytes) from eagle5-98.ebulteni.com[185.131.211.98] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:24 bde60cf94933 postfix/smtpd[712]: disconnect from eagle5-98.ebulteni.com[185.131.211.98] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:46 bde60cf94933 postfix/smtp[621]: SSL_connect error to emig.freenet.de[2001:748:100:40::8:115]:25: Connection timed out mailcowdockerized-postfix-mailcow-1 | Dec 22 22:50:46 bde60cf94933 postfix/smtp[621]: DDF838026C: Cannot start TLS: handshake failure mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/postscreen[754]: CONNECT from [212.6.174.184]:57213 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 whitelist_forwardinghosts: Look up 212.6.174.184 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/dnsblog[761]: addr 212.6.174.184 listed by domain list.dnswl.org as 127.0.15.0 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/dnsblog[762]: addr 212.6.174.184 listed by domain hostkarma.junkemailfilter.com as 127.0.1.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/dnsblog[762]: addr 212.6.174.184 listed by domain hostkarma.junkemailfilter.com as 127.0.0.1 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/dnsblog[765]: addr 212.6.174.184 listed by domain wl.mailspike.net as 127.0.0.17 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/postscreen[754]: PASS OLD [212.6.174.184]:57213 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/smtpd[536]: connect from mx-ca-184.xqueue.com[212.6.174.184] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:22 bde60cf94933 postfix/smtpd[536]: Anonymous TLS connection established from mx-ca-184.xqueue.com[212.6.174.184]: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:46 bde60cf94933 postfix/smtpd[536]: NOQUEUE: reject: RCPT from mx-ca-184.xqueue.com[212.6.174.184]: 450 4.1.8 <bounce-hdh3vfe5bp5vcgd7cix4h5xkcgbr34lkgb45tewnujt3ez2nzwla@info.trendtours.com>: Sender address rejected: Domain not found; from=<bounce-hdh3vfe5bp5vcgd7cix4h5xkcgbr34lkgb45tewnujt3ez2nzwla@info.trendtours.com> to=<XXXXXX> proto=ESMTP helo=<mx-ca-184.xqueue.com> mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:46 bde60cf94933 postfix/smtpd[536]: disconnect from mx-ca-184.xqueue.com[212.6.174.184] ehlo=2 starttls=1 mail=1 rcpt=0/1 quit=1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:47 bde60cf94933 postfix/postscreen[754]: CONNECT from [178.215.236.130]:65368 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:47 bde60cf94933 whitelist_forwardinghosts: Look up 178.215.236.130 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:47 bde60cf94933 postfix/postscreen[754]: PREGREET 11 after 0.01 from [178.215.236.130]:65368: EHLO User\r\n mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:47 bde60cf94933 postfix/dnsblog[762]: addr 178.215.236.130 listed by domain bl.mailspike.net as 127.0.0.2 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:51:47 bde60cf94933 postfix/postscreen[754]: DISCONNECT [178.215.236.130]:65368 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:12 bde60cf94933 postfix/smtpd[565]: timeout after DATA (0 bytes) from eagle5-91.ebulteni.com[185.131.211.91] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:12 bde60cf94933 postfix/smtpd[565]: disconnect from eagle5-91.ebulteni.com[185.131.211.91] ehlo=2 starttls=1 mail=1 rcpt=1 data=0/1 commands=5/6 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:30 bde60cf94933 postfix/postscreen[754]: CONNECT from [212.29.90.8]:50838 to [172.22.1.253]:25 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:30 bde60cf94933 whitelist_forwardinghosts: Look up 212.29.90.8 on whitelist, result 200 DUNNO mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:33 bde60cf94933 postfix/postscreen[754]: PASS NEW [212.29.90.8]:50838 mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:34 bde60cf94933 postfix/smtpd[536]: connect from smtp.vestel.com.tr[212.29.90.8] mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:34 bde60cf94933 postfix/smtpd[536]: Anonymous TLS connection established from smtp.vestel.com.tr[212.29.90.8]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) mailcowdockerized-postfix-mailcow-1 | Dec 22 22:52:34 bde60cf94933 postfix/smtpd[536]: 961B07E15C: client=smtp.vestel.com.tr[212.29.90.8]

DocFraggle

Bist Du Neukunde bei Hetzner? Du bekommst Timeouts wenn Du an Port 25 schicken willst. Bei Hetzner muss man 30 Tage Kunde sein bevor man an Port 25 Mails Richtung Internet schicken darf als Spam Abwehr

Warum kann ich keine Mails von meinem Server verschicken?

Leider ist der gezielte Versand von Spam-Mails ein großes Problem unter Cloud-Anbietern. Um dem bestmöglich entgegenzuwirken, blockieren wir bei Hetzner den ausgehenden Datenverkehr der Ports 25 und 465 standardmäßig auf allen Cloud Servern. Diese Vorsichtsmaßnahme ist unter Cloud-Anbietern weit verbreitet und hilft die missbräuchliche Nutzung der Ports zu verhindern. Bevor wir diese Ports für neue Kunden entsperren, möchten wir ein gewisses Vertrauen aufbauen. Sobald Sie seit mindestens einem Monat registriert sind und mindestens eine Rechnung bezahlt haben, können Sie aber bei einem konkreten Anwendungsfall mittels des Limit-Formulars eine Anfrage zur Entsperrung der Ports 25 und 465 stellen. In der Anfrage können Sie uns Ihren Fall schildern und weitere Details nennen. Jede Anfrage wird einzeln überprüft.

Alternativ kann auch Port 587 zum Versenden von E-Mails über externe Dienstleister/Mailservices genutzt werden. Port 587 ist nicht blockiert und es ist auch keine Limit-Anfrage erforderlich, um diesen zu nutzen.

https://docs.hetzner.com/de/cloud/servers/faq/

Tester

DocFraggle

Nein, ich bin kein Neukunde bei Hetzner. Seit vielen Jahren bin ich dort.

Der gleiche Gedanke ist mir auch gekommen. Entsprechend habe ich bei Hetzner angefragt. Sie meinen die Ports wären offen.

Aber genau diese Timeouts sind wohl das Problem. Ich wüsste nicht woher diese kommen sollten. Ich bin ratlos, habe den Server nun wieder auf den alten Host mit der Einzel-IP geschoben. Hier läuft alles ohne Probleme.

DocFraggle

OK strange… hattest Du mal direkt vom Proxmox Host aus per telnet Port 25 von Mailservern getestet?

Tester

DocFraggle

Nein, kann ich evtl. noch machen.