User unknown in virtual mailbox table (but working on Horde)

[lvaroR]

I created a new email account, but when I try to send an e-mail to it I get the message:
... «<[email protected]>: Recipient address rejected: User unknown in virtual mailbox table»
I get the same error with telnet after the RCPT TO command.

If I try to send an e-mail using that account, the authentication fails if I setup the account (from an e-mail client) with required authentication.

But I can send successfully e-mails through Horde. And I receive those messages from a desktop e-mail client without errors.

The older e-mails accounts are working fine.

I find an entry with
/usr/local/psa/admin/sbin/mail_auth_view | grep [email protected]

I get no output from
strings /var/spool/postfix/plesk/virtual.db | grep [email protected]
Using mchk and mailmng does not seems to change that.

I also found the file /etc/postfix/virtual.db .
strings /etc/postfix/virtual.db : no output

What could be the problem?

Regards

 

[lvaroR]

I created an entry in /var/spool/postfix/plesk/virtual.db and now I can send emails to that account without errors using postmap.
This the last line from the file virtual:
[email protected] [email protected]

But I still can't send emails using that account.
And, of course, Plesk is not updating the virtual.db file.

Could someone help me?