That is the issue. Disable the email scanning for incoming and outgoing emails and test.

Mail scanning is redundant and the resident AV will catch any virus coming in or going out provided it is kept up to date

--
Peter

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"Simon" wrote in message ...
Thanks for the reply, that is not an issue. I should have said they get a
"outlook cannot contact you POP and SMTP servers"

If I change the POP and SMTP addresses TO ip addresses I get the same error.
I wondered if it was a DNS problem, but as I changed to IP addresses that
shouldn't be a problem..

Routing?

Tracert responds correctly. Maybe it's not an outlook issue.


I'm at a loss.