Fat Bear Mail Services wrote:
Noel Jones wrote:
Fat Bear Mail Services wrote:
How would one setup Postfix that uses /etc/passwd for authentication
so that e-mails of the pattern:
[EMAIL PROTECTED]
is delivered to:
[EMAIL PROTECTED]
where there is a 1:1 mapping between companyID and companyDomain?
For example:
[EMAIL PROTECTED] >>> [EMAIL PROTECTED]
Note above that "acme" maps to "acmedesign.com".
One would use an awk or perl script to generate a virtual_alias_map
from the input file.
The virtual_alias_map could not be hash:/etc/postfix/virtual because
that could not handle e-mail addresses where "anyString" is discarded,
right? I would think that we'd need to have regexp:/etc/postfix/virtual
that can handle transformations such as:
I'm glad to see you've done some homework before asking.
The point I'm making is that while you *can* use a regexp for
virtual_alias_maps, you shouldn't.
Whatever matches in virtual_alias_maps is considered a valid
address, so a regexp map is (usually) not appropriate. It's
important for postfix to know valid addresses so that invalid
ones can be rejected during SMTP - before they are accepted
and cause backscatter bounces.
So, as I said earlier, use awk or perl to generate a hash
table with the proper 1-1 transformations in it, using the
your password file as the data source. You can automate this
with a Makefile and cron so that a new table is periodically
rebuilt automatically, but only when there are changes.
If you think a regexp map is appropriate, explain why.
--
Noel Jones
