Secondly, since I sit on a residential IP (though the IP hasn't changed in
two years), certain domains such as aol.com and hotmail.com either indiscrimantely dump the mail from my domain into spam filters or outright
reject it (aol as of late). Using postfix, I could route the mail through
my ISPs mail relay, and the mail would go through fine. Again, this worked
similar to the canonical maps; defining certain domains in a transport map
file would relay the mail through the ISPs relay instead of trying directly.
esmtproutes:
aol.com: mail.isp.net
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