I set up a Mac OS X Server 10.3.9 in Brazil and its mail service is
running now perfectly, except that for any reason a major online
service based in US blocks our static IP address. Their postmaster web
site is merely a fake site, there postmaster help desk phone number is
dead, the postmaster e-mail address produces only automated response
messages. So I gave up, since there seems to be no way to let them
unblock our IP.
My idea is now, to relay mail to their members by our SMTP server in
Germany, which is not blocked by them. However, I do not want to relay
all mail from Brazil by the German server, since this involves too much
unnecessary long distance traffic.
I know, how to change the Postfix configuration files to relay all mail
by another SMTP host. But, how do I relay only for certain destinations
by another SMTP host? Is this feasible at all?
Many thanks for your help in advance.
Rolf Jansen
PS:
A major online service based in Germany was also blocking our IP in
Brazil. I sent them a kind notice to there postmaster address, and they
responded personally and kindly, and they removed our IP from their
block list within 12 h after my message without any further discussion.
I consider this a professional and responsible way of dealing with
problems, compared to the totally unprofessional and irresponsible
attitude of this other online service.
