Marco wrote: > > I look this message only on my log. Can Exim send an SMTP error (ex. > code 5xx Encryption required for authenticated sending) > to client?
No, Marco, as others have already explained to you. SMTP clients will not attempt to authenticate if AUTH is not advertised, and a properly configured Exim server will only advertise LOGIN and/or PLAIN authentication over an encrypted connection, so there is never an opportunity to send that error. Alan's error will never get sent, because if a client attempts to authenticate when AUTH is not advertised, Exim detects that as a protocol error, and it never gets to the ACL: > 220 pyloric.projectile.ca ESMTP Exim 4.52 Sat, 04 Feb 2006 09:29:59 -0500 > EHLO test.projectile.ca > 250-pyloric.projectile.ca Hello vomit.projectile.ca [192.168.23.50] > 250-SIZE 52428800 > 250-STARTTLS > 250 HELP > AUTH LOGIN > 503 AUTH command used when not advertised - Marc -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
