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. -- ____________________________________________________________________ D o m i n i k S k ł a d a n o w s k i