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Topic Title: Forum sign-up mail comes from host without RDNS
Topic Summary: Looks spammy
Created On: 05/14/2014 06:33 AM
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 05/14/2014 06:33 AM
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Posts: 4
Joined: 05/14/2014

Sign-up mail to my primary address produced the following at the server:

May 14 12:01:41 svc2 postfix/smtpd[15898]: NOQUEUE: reject: RCPT from unknown[]: 450 4.7.1 Client host rejected: cannot find your hostname, []; from=<agent.ruby@amd.com> to=<MY MAIL ADDRESS> proto=ESMTP helo=<fusetalk.com>

Those connection attempts get denied because doing so nukes 99% of incoming spam without much load on the server and, frankly, all proper senders who know what they're doing have RDNS set up. DNS is not some new fancy thing.

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