How can e-mails sent to system users be forwarded to another e-mail address?
The system mail inbox is generally found in the /var/mail/systemmail directory and can only be read by the root user. To forward system mails to another user, the Univention Configuration Registry variable mail/alias/root can be configured.
Additional forwarding is also possible with further UCR variables (e.g.: “mail/alias/systemmail”, “mail/alias/postmaster”).
Setting the Univention Configuration Registry variable:
univention-config-registry set mail/alias/root=<username>@<domainname>
Updating the Postfix alias database:
Reloading the Postfix configuration: