Jonathan Morace said:
> With multiple aliases going to one user, sendmail does only deliver one
> message. The problem occurs only when the message goes through resend. I
> don't understand sendmail incredibly well, so I could just be
> misunderstanding what is happening. Is it indeed sendmail "at fault"?
Using sendmail basic aliases, the MTA can identify and suppress
duplicates. With resend, each instance is in effect a separate (new)
message. Running under different processes, sendmail has no way to
know there are duplicates.
> Is there any other MTA which can handle this kind of situation?
Probably not. With something like qmail (each individual message is
its own connection), it might even be worse. The real question is,
are list-managers with builtin transports (Listserv, MJ2) able to
avoid this problem? If so, then it goes away with the MJ2 release.