Cannot authenticate via SMTP for mail users with only-forwarded e-mail address

[Peter77]

I use Plesk 10.2 on "Linux 2.6.18-028stab091.2" with standard mail settings (postfix)

For a domain hosted on the server (be it "example.com") I created a mail address info@example.com, which is forwarded to another mail address.

The user for this mail address cannot authenticate via smtp to send mails.

See this telnet session:

telnet xx.xx.xx.xx 25
Trying xx.xx.xx.xx...
Connected to xx.xx.xx.xx.
Escape character is '^]'.
220 myserver.com ESMTP Postfix (Ubuntu)
EHLO example.com
250-myserver.com
250-PIPELINING
250-SIZE 10240000
250-ETRN
250-STARTTLS
250-AUTH PLAIN DIGEST-MD5 LOGIN CRAM-MD5
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
auth login
334 VXNlcm5hbWU6
mymimeencodedusername
334 UGFzc3dvcmQ6
mymimeencodedpassword
535 5.7.8 Error: authentication failed: authentication failure
quit
221 2.0.0 Bye

And this is from the mail.info log:
Nov 4 14:28:44 xxxx plesk_saslauthd[24338]: listen=6, status=5, dbpath='/plesk/passwd.db', chroot=1, unprivileged=1
Nov 4 14:28:44 xxxx plesk_saslauthd[24338]: privileges set to (108:111) (effective 108:111)
Nov 4 14:28:44 xxxx plesk_saslauthd[24338]: No such user 'info@example.com' in mail authorization database
Nov 4 14:28:44 xxxx plesk_saslauthd[24338]: failed mail authenticatication attempt for user 'info@example.com' (password len=15)
Nov 4 14:28:44 xxxx postfix/smtpd[24308]: warning: myip[yy.yy.yy.yy]: SASL login authentication failed: authentication failure

I looked into passwd.db with sqlite3, there is no user for my domain.


Users for mail-addresses with a mailbox can use smtp. I expect that for users without mailboxes, too.

 

[esbon]

Same problem here, has anyone found a solution please

 

[quark]

I have the same problem in Plesk 11. Any solution?