In a scenario on which we have a local network with Outlook/Thunderbird clients and
sendmail on a Linux server: it is possible to use some
milter to modify the incoming mail to add the signature of the sender to the mail he/she sends? it may be useful to centralize the signatures in the server.
The steps would be something like this:
1) The user composes a mail and sends it. The MUA set some "signature" magic text to be replaced later, i.e.: "
x-replace-signature-x", so the MUA must be configured to add that signature on the place the user wants (below the quoted text or below the reply)
2) Mail arrives to
Sendmail takes the user name from the "
From" header, i.e.
Sendmail looks in the filesystem for the signature of that user in
html (with possibly embedded images), i.e.
5) The milter looks for "
x-replace-signature-x" and replaces that line with the contents of
MTA sends out the mail (in my case to a smarthost).
I don't know such capability, so that's why I'm thinking about a milter with regex match.