ansas Hi, i am having trouble sending emails to a german provider “freenet”. Error mail says: TARGET_eMail@freenet.de: host emig.freenet.de[2001:748:100:40::8:118] said: 550-Inconsistent/Missing DNS PTR record (RFC 1912 2.1) (MAIL_FQDN) 550 [correct IPV6]:45216 (in reply to RCPT TO command) However: nslookup IPv4 and v6 are pointing to correct FQDN hostname.domain. Anyone with an idea to solve this ? Thanks in advance !
faisal If you put in your outgoing IP here, do you get a consistent result? https://www.whatsmydns.net/#PTR/1.1.1.1
ansas cool DNS checker… and yes: IPv4 and IPv6 results are consistent and equal on every reply. ….now I’m working through the RFC definition , but this is quite raw ….. Thank you anyway !
ansas maybe it is a missing AAAA for my host. found out that: https://www.whatsmydns.net/dns-lookup/aaaa-records? reported nothing for my IPv6… now I’m waiting for DNS to “refresh”….