On Tue, 6 Sep 2005, Dominik Sk?adanowski wrote: > I have mail server on CentOS 4.1. Sasl authorization for SMTP is > enabled. Thunderbird sends mail, but Outlook get an error 554, Relay > access denied, error number 0x800CCC79 > > Outlook has a login and password for SMTP enabled. > > It is strange, because there is no any sign of authorize in maillog > when Outlook try to send mail. I use Sendmail, not Postfix, but... It's my experience that the most recent versions of Outlook (the one bundled with MS Office) no longer handle TLS gracefully. I've had to reconfigure Outlook to send with straight SSL over port 465. -- Paul Heinlein <> heinlein at madboa.com <> www.madboa.com