Qmail – limit the inbound servers that can connect

dander062 · 03-11-2016, 12:30 PM

I inherited a Qmail Toaster server, Qmail 1.05.
I am looking to limit the incoming servers to our own and a cloud spam filter.
Email is coming in other servers. Blocked by Spam Assassin well.

I have not found a file to control this.
In Exchange it would be: Hub Transport → Default Properties → Network →Receive mail from remote servers that have these IP addresses. Delete default rule to accept from everywhere. Add the ones you want. Restart the Microsoft Exchange Mail Submission service.

bathory · 03-12-2016, 08:15 AM

Hi,

Check the /etc/tcp.smtp file
Or in your case, you may look at this.

Regards

dander062 · 03-12-2016, 09:45 AM

I found /etc/tcprules.d. Which has:
tcp.smtp tcp.smtp~ tcp.smtp-auth tcp.smtp-auth.cdb tcp.smtp.bak tcp.smtp.cdb tcp.smtp,v
That is the place to start. Thanks bathory.