asked on

501 5.7.1 error

Just installed a new exchange 2003 server sp2 and am getting this error on only one XP machine and only to one particular e mail domain at teh moment:-

You do not have permission to send to this recipient. For assistance, contact your system administrator.

<SERVER.xxxxxxx.local #5.7.1 smtp;501 5.7.1 195.74.118.74 DSL4 rDNS source IP detected - sender, please use your ISP's mail server>

xxxxxxxx is the customer name.

All other 25 PC's are fine and this one is okay on all other e mail?

Matt

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Sembee

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matthewtwynham

ASKER

How do I change the server to reflect the .co.uk rather than the .local?

Sembee

Did you look at the web page I posted above? It is all outlined on there.

Simon.

matthewtwynham

ASKER

Thanks Simon

I did read the page, which suggested setting up reverse DNS and MX records.

The MX records were already correct, after setting up teh reverse DNS we still had teh same problem.

In teh end I had to set up a new SMTP connector,using teh ISP as a smart host and just use it for the specific domain that we were having problems with, my guess is that there will be more in the future, but time will tell.

Many thanks for your suggestions.

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