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Old 23rd February 2011
gpatrick gpatrick is offline
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Join Date: Nov 2009
Posts: 226
Default OpenSMTPD

Since I had to reinstall and was having problems with Sendmail + SMTP Auth, I decided to return to OpenSMTPD, which I was trying prior to Sendmail.

I now have local delivery on my internal network to mbox. Next I want to try to send mail out through SMTPD, but I'm not sure of the synatx.

According to the documentation:
accept for all relay via "example.com" ssl enable auth
would be used to relay mail to another mail server, however, in my case, I have port 25 available, and my mail server would be mail.example.net.

I have an OpenBSD PF firewall in front, and one network for internal and another network for a DMZ. I plan to place mail.example.com in the DMZ, so on my DMZ server that has OpenSMTPD, would I use:
accept for all relay via "mail.example.net" ssl enable auth
Of course having appropriate redirects on my firewall.

Would that work if I want to send mail from my internal network to say my sister on another mail host such as yahoo.com?
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Old 23rd February 2011
J65nko J65nko is offline
Join Date: May 2008
Location: Budel - the Netherlands
Posts: 3,506

You have that setup, most of us probably do not, so just try it.
IF things do not work, check the mail logs, run tcpdump to find where things are stuck.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
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