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On Sat, Jan 08, 2011 at 07:53:58PM +0000, Jan Johansson wrote:
> > email@example.com smtp:[172.31.254.160]
> > firstname.lastname@example.org smtp:[172.31.254.150]
> ># postmap /etc/postfix/transports
> ># postfix reload
> Thanks. I got the answer a bit earlier on the list. I was under the (incorrect) impression that transport only worked on domain level.
It is best used that way, especially if per-user lookups involve LDAP,
MySQL or similar. A more complex, but more performant solution is to
rewrite each type of user to a suitable domain that is routed to the
right place. Then, if absolutely necessary use smtp_generic_maps to
rewrite back to the original address during SMTP delivery, but better
to have each destination accept non-public internal "route" addresses.