https://bugs.exim.org/show_bug.cgi?id=1885
--- Comment #21 from Thaddeus H. Black <[email protected]> --- Additional tests seem to confirm my last comment. In my setup, "smtp.example.com" and "example.com" are the same relay host. The DNS A record and reverse DNS say "example.com". The name "smtp.example.com" is merely a DNS CNAME alias. My client is configured to relay through "smtp.example.com", the alias. When my client sends several emails within a short period, however, my client sometimes decides (for some reason) to handle the first email specially. Sometimes, my client relays the first email through "example.com". Why "example.com"? I do not know. Maybe because of reverse DNS? At any rate, I now seem to have a reliable workaround. I have told the client to use the same password for "example.com" as for "smtp.example.com". For information: as long ago as 2004, a detailed discussion of the issue, or of a related issue, seems to have taken place at [1]. [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=244724 Thank you for all the good advice! I don't know whether you have learned anything worth learning here, but I have learned much. -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/exim-dev Exim details at http://www.exim.org/ ##
