exchange Inbound SMTP test (ERCA) fails, DNS related

RimFire007 used Ask the Experts™

A SBS 2003 R2 exchange there the ISP started to point mails last friday. Clients can send mail and fetch mail but does not work Internally and externally only partially. I run CEIICW on Friday to have the certificate. This site haven't use Exchange before. The ISP did DNS change on Friday. This server has built apx two years ago.I haven't do anything for the DNS server.

Also asked help on here:

Any ideas how to fix this? I'm in trouble.
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please send a eamil to user in your company from any external address like hotmial aol or gmial
i think it is working fine
ExRCA is giving you error.. but you can ignore this your mx recorcd with value 10 is not your domain .. i guess your isp

if you get any NDR (wich i thing you will not )  while sending fom hotmail or aol please share


Thanks dhruvarajp

I've been working with this awhile. I have opened separate questions regarding the Open Relay / SPAM on queye situation:
and possible internal DNS problem:

In principle the system works but I have huge problems specially with SPAM.

I will close this Question for above reasons.

Thank you again,

Rgs Juha


There has been multiple problems with this server

Open relay
Padly configured DNS
ND attack wich caused delays and unexpectly behaviour. The conversation icontinues in links provided.

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