Re: rDNS test

On Mar 26, 10:46 am, "Kevin D. Goodknecht Sr. [MVP]"
<ad...@xxxxxxxxxxxxxx> wrote:
Read inline please.

 Innews:847ca20a-eb18-4522-893e-10754750c1f4@xxxxxxxxxxxxxxxxxxxxxxxxxxxx,
J <japhyrider2...@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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Not all mail server reject email from domains without a rDNS record.
I'm trying to figure
out if this mail server does....thanks
.

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