On Tue, 21 Nov 2017, wes wrote:
This is up to the administrator of the recipient MTA. They can decide whether to reject mail from senders who claim to be host x in their HELO, but have a different name in their PTR record. In my experience, most of them simply check that a PTR record exists at all, as it used to be hard to get them.
Wes, And I just found an answer on the web: "Although email servers can (by RFC) accept connections that have a poorly formatted HELO or server identification string sent during email transmission dialogue (eg MTA to MTA communications) most Best Practises documents insist that all identifiers are correctly used, and in the case of HELO (or EHLO) this applies as well. The principal is that the HELO should identify the sending server in such a way that it can be used to identify servers with problems, such as leaking Spam or incorrectly formatted emails."
It's postfix (in your case) that adds the hostname, not alpine.
I should have realized this. BTW, if you can suggest a mail list or web forum for openDKIM assistance I'd appreciate it. Happy Thanksgiving, Rich _______________________________________________ PLUG mailing list PLUG@pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
