Hi.
My mailcow server sometimes find a domain record not - after restart the acme container, it does.
And there is no domain changes made, there are 3 NS servers from a large provider.
Is this a bug, or how can I debug this issue?
I replaced the domain name with problems with YYY and the main domain of my mailcow with XXX.
The problematic mail.YYY.de domain is a CNAME to my mail.XXX.de:
#dig mail.YYY.de
;; ANSWER SECTION:
mail.YYY.de. 300 IN CNAME mail.XXX.de.
mail.XXX.de. 300 IN A [SERVER IP]
This worked 12 days, than does not find the domain and after restartit does again - and same thing after 24 days (without any changes at the DNS).
Full log grepped after mail.YYY.de
Mon Jan 1 10:27:27 CET 2024 - [DOMAIN YYY is added to this mailcow]
Mon Jan 1 10:27:27 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Mon Jan 1 10:27:29 CET 2024 - Certificate /var/lib/acme/box.XXX.de/cert.pem missing or changed domains 'box.XXX.de autoconfig.XXX.de autoconfig.YYY.de autodiscover.XXX.de autodiscover.YYY.de mail.XXX.de mail.YYY.de' - start obtaining
Found domains: mail.YYY.de, box.XXX.de, autoconfig.XXX.de, autoconfig.YYY.de, autodiscover.XXX.de, mail.XXX.de, autodiscover.YYY.de
Verifying mail.YYY.de...
mail.YYY.de verified!
Tue Jan 2 10:28:50 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Wed Jan 3 10:29:13 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Thu Jan 4 10:29:38 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Fri Jan 5 10:30:02 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Sat Jan 6 10:30:33 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Sun Jan 7 10:31:01 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Mon Jan 8 10:31:26 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Tue Jan 9 10:31:49 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Wed Jan 10 10:32:15 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Thu Jan 11 10:32:42 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Fri Jan 12 10:29:43 CET 2024 - No A or AAAA record found for hostname mail.YYY.de
Fri Jan 12 10:52:05 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Fri Jan 12 10:52:09 CET 2024 - Certificate /var/lib/acme/box.XXX.de/cert.pem missing or changed domains 'box.XXX.de autoconfig.XXX.de autoconfig.YYY.de autodiscover.XXX.de autodiscover.YYY.de mail.XXX.de mail.YYY.de' - start obtaining
Found domains: autoconfig.YYY.de, mail.XXX.de, autoconfig.XXX.de, box.XXX.de, autodiscover.XXX.de, autodiscover.YYY.de, mail.YYY.de
Already verified: mail.YYY.de, skipping...
Sat Jan 13 10:53:23 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Sun Jan 14 10:53:48 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Mon Jan 15 10:54:17 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Tue Jan 16 10:54:43 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Wed Jan 17 10:55:07 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Thu Jan 18 10:55:36 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Fri Jan 19 10:56:05 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Sat Jan 20 10:56:34 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Sun Jan 21 10:57:05 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Mon Jan 22 10:57:32 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Tue Jan 23 10:58:00 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Wed Jan 24 10:58:24 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Thu Jan 25 10:58:54 CET 2024 - No A or AAAA record found for hostname mail.YYY.de
Thu Jan 25 11:24:15 CET 2024 - Found A record for mail.YYY.de: [SERVER IP]
Thu Jan 25 11:24:16 CET 2024 - Certificate /var/lib/acme/box.XXX.de/cert.pem missing or changed domains 'box.XXX.de autoconfig.XXX.de autoconfig.YYY.de autodiscover.XXX.de autodiscover.YYY.de mail.XXX.de mail.YYY.de' - start obtaining
Found domains: autoconfig.YYY.de, autodiscover.YYY.de, box.XXX.de, mail.YYY.de, autodiscover.XXX.de, mail.XXX.de, autoconfig.XXX.de
Already verified: mail.YYY.de, skipping...