OK, now I have the weirdest exchange problem ever!

Butters

Butters

Butters

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22 Apr 2007
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Yesterday I asked how to set up a group email account from my external web domain mydomain.com. The internal domain is domain.com.

Every user within domain.com recieves email as intended. The group email is [email protected]

Now, if I email this from either gmail.com or googlemail.com all of the recipients receive it without any problem.

However, If I email it from any other address the messages do not get through and the sender receives absolutely NO messages back at all.

I've tried btinternet.com, hotmail.co.uk, etc and none of them seem to get through or have errors returned.

Does anyone have any ideas? I opened Port 25 on the NAT (even though everyone was receiving before) and still nothing. Got me stumped
 
Butters said:
Yesterday I asked how to set up a group email account from my external web domain mydomain.com. The internal domain is domain.com.

Every user within domain.com recieves email as intended. The group email is [email protected]

Now, if I email this from either gmail.com or googlemail.com all of the recipients receive it without any problem.

However, If I email it from any other address the messages do not get through and the sender receives absolutely NO messages back at all.

I've tried btinternet.com, hotmail.co.uk, etc and none of them seem to get through or have errors returned.

Does anyone have any ideas? I opened Port 25 on the NAT (even though everyone was receiving before) and still nothing. Got me stumped
Click to expand...

Spam/Junk Filters?

Are the emails hitting the exchange server?

What version of Exchange?
 
Matt-Page said:
Spam/Junk Filters?

Are the emails hitting the exchange server?

What version of Exchange?
Click to expand...

Exchange 2003

How can I tell if they are hitting the server and why would all popular domains be in the SPAM list but not gmail?

Horribly confused, thanks so far
 
Stupid question but could it be a permissions problem? Check under security and make sure Authenticated Users has the 'Send To' option check. Also make sure that theres nothing else in the list denying the users this permission.

Also check under the Exchange General options and make sure that the message restrictions box isn't limited who can send to it.
 
If it's a default install, permissions shouldn't be the issue here. Try turning on SMTP logging from within ExchangeSM, send a few test emails and review the logs.

To enable SMTP logging you have to go into ESM and under the properties of your SMTP Virtual Server there should be a check box, pretty straight forward. To view the SMTP logs; Windows key + R, type logfiles and hit enter. The logs should be contained in the SMTPSVC directory.

EDIT

You need to check that as your sending mail from external domains these logs are being populated. That would indicate that mail is reaching your server.
 
Last edited:
I think I found the problem.

The IP address of the server is Dynamic and was tracked by dnsalias.com

If a company did reverse lookups then it was getting flagged as SPAM as it was coming back as a dynamic address.

I've skipped the DNSalias part for the moment and have contacted my ISP to get a static address assigned.

Thanks
 
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