Exchange Server

Chris Bingham · Guest

Hi,

We're getting emails sent to 2 specific domains bounced back with this error
message;

There was a SMTP communication problem with the recipient's
email server. Please contact your system administrator.
<mailgate.3dwebtech.co.uk #5.5.0 smtp;550 Requested action not
taken: Nonstandard SMTP line terminator.>

We can receive mail from the affected domains OK and all mail to any other
domain is also OK. We also experiance this issue if they reply to an email
recieved from 1 of the affected domains.
I've spent ages trawling the net, and i've found stuff pointing towards a
few specific apps that can cause this, like ORFilter, but we're not running
any of the apps mentioned.
At the moment i'm think that this could be something on the recipents end,
but i'm not sure?

If anyone could help or give me any pointers please i'd really appreciate
it! :)

We're running SBS2003 with F-Secure AV 6.31 (without Spam Filtering), all
mail clients are Outlook 2003.

Thanks in advance for any help anyone can give!

Thanks,
Chris

	Exchange Server Forum Index -> Exchange General	All times are GMT
Page 1 of 1