On 19/09/2011 16:01, Wietse Venema wrote:
Tawanda Kavayi:
Hi,
I am new to postfixadmin, but not to postfix, and have just done my
first installation. My problem is that I would like mail for unknown
local users to be relayed to another server, instead of being being
rejected. I have done this before with unix accounts using the
That is a terrible idea. If the other server throws away mail
for non-existent recipients, then people lose mail when the sender
makes a typing error; if the other server doesn't throw away mail,
then you will send spam back to innocent people.
Instead, tell Postfix what users must be delivered elsewhere, by
listing their local and remote email address in virtual_alias_maps.
Wietse
The scenario is that the one server doesn't throw away unknown mail
because it has only a few local users setup on it. If one of these local
users sends mail to a non-local user, in the same email domain, mail is
sent to a bigger server where the bulk of users are configured. This is
the final destination and if a user does not exist on that main server,
an error is generated.
The number of users does not make it practical to configure each and
every remote user's email address in virtual_alias_maps, and it would be
a nightmare to manage.
Also the "small" server, is not the destination MX for this domain, the
"big" server is. Users on the small server also have mailboxes on the
"big" server. The "small" server uses fetchmail to bring mail from the
"big" server to the "small" server and the local users' mailboxes.
Tawanda
