[Kroupware] Relay for unknown mailboxes

[Michael Harlaut]

Hello,

There is an option in Postfix (luser_relay), to relay to an other 
mailbox and/or host, when a recipient is unknown.
This is usefull when you have to deal with two mail servers (it's about 
the "mail delivery part" of Kolab only).

Unfortunatly, this is not possible with Kolab, because luser_relay works 
with local recipient only (/etc/passwd use).

So ... does anyone know if there is a elegant way to tell postfix or 
cyrus-imap to relay the mail to $user at another.host rather than rejecting 
it with a "550-Mailbox unknown" ? :)

It can help during a long migration process from an old server to Kolab.

Or perhaps i have to look for a different approach :)
Thanks for hints !


-- 

Michael 



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