make my own smtp server
I have a customer with about 60 workstations using
Thunderbird for their eMail. They are all behind
a CentOS 5.4 server acting as firewall and router
(among other things).
Problem: we use a third party eMail server. Their
smtp server has some kind of filter, probably a spam
filter, on it that is blocking about 2 out of every
three outgoing eMails. (And, of course, they claim
it is all our fault.) This is really, really hurting
a business that lives and dies on its eMail.
How do I turn my CentOS firewall/router/server into
our own smtp server? The server has a fixed IP, but no
DNS (MX) mail record. Do I need to to get an MX record
put on the domain?
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