smtp error 550

corecc
corecc used Ask the Experts™
on
Hi experts

Im getting the following error when sending to a few different domains

#5.5.0 smtp;550 <shop@betterfood.local>: Sender address rejected: Domain not found

Im running exchange on a sbs 2003 server. I have a reverse dns setup with the ISP

I can email the problem domains from a differnt mail server with no issues.

I can have a telnet conversion with the recipent mail server with no errors.  

The only thing ive not setup is a PTR record but im not sure how to do this. maybe this should be setup by the isp as they have setup the reverse dns record.

Any suggestions are greatly appreciated.

Thanks
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Commented:
DNS issue, verify the settings with your ISP (mx, A and reverse)

Author

Commented:
thanks, e-tream, we look after the dns through dns made easy, we have a c and mx records setup correctly. No PTR configured though, but as I say maybe this should be done by the isp as they control the reverse dns record.
Co-Owner
Top Expert 2011
Commented:
.local domain names are invalid, so if your email address ends .local, it is going to get rejected.  Correct your email address and try again.

Author

Commented:
problem solved, so obvious, Cant believe I hadn't spotted that, ive been on this for hours.
Alan HardistyCo-Owner
Top Expert 2011

Commented:
Sometimes the obvious gets missed.  Glad it is sorted and thanks for the points.

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