We've been running authenticated smtp for awhile. I want to implement smtpd_sender_login_maps and reject_sender_login_mismatch
For most logins, the log is showing the fqdn of the smtp server. As in: sasl_username=u...@smtp.example.com For some users it shows only the domain name. sasl_username=u...@example.com On testing, I've seen this is influenced by adding the domain name to the user name in the client. If the client is only setup with a userid with no domain, the login shows sasl_username with fqdn. One solution is to list both mappings, fqdn and domain name. Is there a way to cause the sasl_username to be standardized to one form or the other? That is, without causing those using the domain as part of their userid to experience failure?
