Re: rDNS test
- From: "Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx>
- Date: Wed, 26 Mar 2008 12:46:34 -0500
Read inline please.
In news:847ca20a-eb18-4522-893e-10754750c1f4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx,
J <japhyrider2005@xxxxxxxxx> typed:
Hello,
I have an Exchange 2003 server. A host company collects our email
then I download it to the Exchange server.
One client cannot send us email. They recently changed ISPs. They do
not have an rDNS record setup.
I suspect that our host requires a rDNS, but when I asked their tech,
he says no. Is there a test I can run to see if our host requires a
rDNS? (I don't trust what the tech said!)
TIA
I don't know of any tests other than the fact that an SMTP without a PTR
gets mail rejected answers the question of whether a PTR is required.
PTR lookups are just one of a series of spam reduction checks, I don't
understand using a third party to collect mail unless it is to reduce
unsolicited e-mail and other e-mail threats.
--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
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