Hi, > I have a postfix-3.7.3 fedora37 system and have a few users who want me to > > disable reject_non_fqdn_sender because it seems many of their users have > > DNS problems. For example, email from nore...@info.apr.gov.rs fails to > > resolve with: > > > > $ host info.apr.gov.rs > > Host info.apr.gov.rs not found: 2(SERVFAIL) > > $ host info.apr.gov.rs > info.apr.gov.rs has address 195.178.56.17 > > Looks like you have a *local* DNS problem. Check your routing, > including netmasks. >
There's definitely a problem with their name servers, but it also seems my version of bind is not permissive enough for such failures, although my bind-9.16.38 system is, using the same configuration. Public name servers also appear to have no issues. I'm currently researching these FORMERR messages. Is there a way to control smtpd_recipient_restrictions on a per-domain basis so I can relax some of these restrictions for cases like this, instead of a more reactive approach where I'm always adding sender_checks.pcre entries? Thanks, Alex
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