Victor, take a look at my e-mail sent 3 days ago in the same thread. I already mentioned the smtp_generic_maps there (order before canonical).
Now it depends on what Dilip wants to achieve, we didn't get enough details. smtp_generic_maps won't work, if you still need to receive e-mails for the old domain (here abc.net) and forward them to a remote host where the mailboxes are stored. If the mailboxes are stored on the postfix server then this should be smtp_generic_maps, I agree. On Fri, Nov 18, 2011 at 8:06 AM, Viktor Dukhovni <postfix-us...@dukhovni.org > wrote: > On Fri, Nov 18, 2011 at 07:56:07AM +0100, Claudio Kuenzler wrote: > > > Take a look at this: > http://www.postfix.org/ADDRESS_REWRITING_README.html > > There are a lot of examples and you'll find what you're looking for. > > Yes, the document is a good place to start. > > > If you want to change the domain for incoming and outgoing e-mails you > can > > do this with canonical_maps. > > No, this advice is probably not wise. > > > The table/file you define after the parameter can contain the complete > > domain name (as wildcard) or full e-mail address which you want to > rewrite: > > > > canonical_map: > > @abc.net @abc.org <- for all e-mail > addresses > > of abc.net > > ma...@abc.net ma...@abc.org <- only single e-mail address > > Wildcard canonical mappings break recipient validation and are strongly > discouraged. > > > If you only want to apply the rules for > > incoming mails, use recipient_canonical_maps or for outgoing mails > > sender_canonical_maps. > > This is really quite wrong, as sender_canonical_maps applies to the > "From:" and envelope sender addresses regardless of whether the message > is incoming or outgoing. > > Likewise "recipient_canonical_maps" applies to the "To:/Cc:" and > envelope recipient addresses regardless of whether the message is > incoming or outgoing. > > Finally, it is almost always wrong to apply different rewriting > rules to "From:" vs. "To:/Cc:" headers. Rather there is a normal > form for headers one to present to the outside world, and sometimes > a different form for internal consumption. > > Therefore, rewriting of all headers should as necessary depend on > the destination, and so must happen in the delivery agent, via > "smtp_generic_maps". One can use different smtp delivery agent > instances for inbound vs. outbound delivery. > > Wildcard rewrites in smtp_generic_maps happen long after recipient > validation, and pose no issues. > > -- > Viktor. >
