On Wed, Apr 08, 2009 at 02:41:35PM -0600, LuKreme wrote:
>> This causes problems with e.g. GMX, which then bounces the mail, since
>> they consider "+foo" to be part of the username (and that does not exist).
>
> Then GMX is broken or misconfigured or just doesn't want to accept
> delimited user names.
Sorry, this is not the case.
> Either allow and support delimited addresses, or don't. Accepting them and
> then discarding them is... well, not right.
No, sometimes one wants to do exactly that. The extension remains
in message headers, even if lost from the envelope and can be rather
useful in that context.
If a virtual alias domain supports recipient delimiters, but a significant
portion of the underlying domains do not, then dropping the extension is
the right thing to do.
propagate_unmatched_extensions = canonical
The default is:
propagate_unmatched_extensions = canonical, virtual
--
Viktor.
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