User unknown in virtual alias table

Hello all,

I have on my Virtualmin Box an account that has worked good for several months.

Today I have added another domain,, and I’ve added an email account

After that, I could no longer send emails to the account , receiving a message: “Recipient address rejected: User unknown in virtual alias table”.

The new claudio.vieira account is working, but the old one (from another domain) is not.
What can I do? Is this a bug?

Thank you

  • Rogerio


If you go into System Settings and click Re-Check Config, does it see any problems?

Also, what is your systems hostname? You can determine that by running the command “hostname”.


Hi Eric,

No problems could be found… see bellow:

The status of your system is being checked to ensure that all enabled features are available, that the mail server is properly configured, and that quotas are active …

Your system has 3.95 GB of memory, which is at or above the Virtualmin recommended limit of 256 MB.
BIND DNS server is installed, and the system is configured to use it.
Mail server Postfix is installed and configured.
Apache is installed.
Webalizer is installed.
Apache is configured to host SSL websites.
MySQL is installed and running.
ProFTPd is installed.
Logrotate is installed.
SpamAssassin and Procmail are installed and configured for use.
ClamAV is installed and assumed to be running.
Plugin DAV Login is installed OK.
Plugin Mailman is installed OK.
Plugin Protected web directories is installed OK.
Plugin Subversion repositories is installed OK.
Using network interface eth0 for virtual IPs.
IPv6 addresses are available, using interface eth0.
Default IP address for virtual servers is
Default IP address is set to, which matches the detected external address.
Both user and group quotas are enabled for home and email directories.
All commands needed to create and restore backups are installed.
The selected package management and update systems are installed OK.

… your system is ready for use by Virtualmin.

[root@linux03 ~]# hostname

[root@linux03 ~]#

What else could I check?

  • Rogerio