>Причем не работает ни LOGIN, ни CRAM, ни PLAIN
А что в логах?Добавь в syslog.conf
*.debug /var/log/debug
Затем
# touch /var/log/debug
# killall -1 syslogd
Вот пример из моего maillog (правда это pop3 аутентификация)
Apr 11 12:31:36 turbogaz authdaemond: received auth request, service=pop3, authtype=cram-md5
Apr 11 12:31:36 turbogaz authdaemond: authmysql: trying this module
Apr 11 12:31:36 turbogaz authdaemond: cram: challenge=PEI3RTlEMjQwQkI5RjdGRUFDNDg1Nzk1Q0EwODZDMjc5QHR1cmJvZ2F6LmtoYXJrb3YtdWEuY29tPg==, response=b2xlZyA1MDBlODQ3ZjczMGQ1N2QxMWU2NzE2NzBlNDE1MTNjMQ==
Apr 11 12:31:36 turbogaz authdaemond: cram: decoded challenge/response, username 'oleg'
Apr 11 12:31:36 turbogaz authdaemond: SQL query: SELECT alias, "", password, id, gid, maildir, maildir, "", info, "" FROM aliases WHERE alias = "oleg@turbogaz.kharkov-ua.com"
Apr 11 12:31:36 turbogaz authdaemond: cram validation succeeded
А вот еще один кусок (smtp аутентификация)
sql plugin Parse the username webmaster
Apr 12 06:44:00 turbogaz postfix/smtpd[9257]: sql plugin try and connect to a host
Apr 12 06:44:01 turbogaz postfix/smtpd[9257]: sql plugin trying to open db 'mail' on host 'localhost'
Apr 12 06:44:01 turbogaz postfix/smtpd[9257]: warning: unknown[222.183.141.115]: SASL LOGIN authentication failed
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin Parse the username webmaster
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin try and connect to a host
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin trying to open db 'mail' on host 'localhost'
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: begin transaction
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin create statement from userPassword webmaster mail.turbogaz.kharkov-ua.com
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin doing query select password from aliases where alias='webmaster@turbogaz.kharkov-ua.com';
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin: no result found
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin create statement from cmusaslsecretPLAIN webmaster mail.turbogaz.kharkov-ua.com
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin doing query select password from aliases where alias='webmaster@turbogaz.kharkov-ua.com';
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: sql plugin: no result found
Apr 12 06:44:06 turbogaz postfix/smtpd[9257]: commit transaction
И еще приведи что выводит при подключении по telnet
# telnet localhost 25
Вот мой пример
220 mail.turbogaz.kharkov-ua.com ESMTP Postfix (2.2.1)
ehlo alex
250-mail.turbogaz.kharkov-ua.com
250-OK
250-SIZE 10240000
250-ETRN
250-AUTH CRAM-MD5 LOGIN PLAIN DIGEST-MD5
250-AUTH=CRAM-MD5 LOGIN PLAIN DIGEST-MD5
250 8BITMIME
