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I am having trouble while attempting to send a single email to an aol.com user. I get a rejection reply as follows:
Your message did not reach some or all of the intended recipients. Sent: Wed, 27 Jul 2011 15:56:24 -0400 Subject: Test The following recipient(s) could not be reached: firstname.lastname@example.org Error Type: SMTP Remote server (220.127.116.11) issued an error. hMailServer sent: Remote server replied: 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html Tried 9 time(s) hMailServer
Troubleshooting using AOL's troubleshooting page, rDNS lookup results are:
RDNS Results DNS Server Response: www.scanhelper.com
And using NSLOOKUP myself ..
> 18.104.22.168.in-addr.arpa Server: homeportal Address: 192.168.1.254 Non-authoritative answer: 22.214.171.124.in-addr.arpa name = www.scanhelper.com
When using telnet,
C:\>telnet mailin-01.mx.aol.com 25 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html Connection to host lost.
My hMailServer is set up correctly, is not an open relay, is not used for spam, is not on any blacklists, and so forth.
Any tips on getting AOL mail servers to accept mail? As far as I can tell, everything is being done correctly on my end.