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Old 13th November 2010, 14:10
truster truster is offline
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Question Forwarding mail if unser unknown possible?

Hello, I have setup a server with this great howto:

Everything works fine, but i have the following situation:

i use the e-mail domain from my isp ( with getmail. All outgoing mail goes to the smtp server from the isp. if i send a e-mail to an address, that is not in my virtual mailbox table, for example:, i get the following message:
5.1.1 <>: Recipient address rejected: User unknown in virtual mailbox table.
send to all other domains works.

is it possible to forward those mail to an external relay host?
In Exchange 2003 i had to delegate the domain as non-authoritative and added a transport for All unresolved adresses would be forwarded to the specified host.

Is this possible with ISPConfig3?

Any Help would be greatly appreciated.

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