550 relay denied message

[Guest]

I have been successfully using Outlook 2002 with two POP accounts. The one
that has always, and still is, default is now coming back with 550 relay
denied messages to messages I try to send to users outside of my domain name.
It just started, and I cannot place what I have done with new files onto the
machine at around the time I noticed it, so I am stumped. Further, when I go
into Email Accounts and test settings, it completes all actions. As soon as
I do that, the messages start going through without issue. Any ideas?

 

[Brian Tillman]

I have been successfully using Outlook 2002 with two POP accounts.
The one that has always, and still is, default is now coming back
with 550 relay denied messages to messages I try to send to users
outside of my domain name. It just started, and I cannot place what I
have done with new files onto the machine at around the time I
noticed it, so I am stumped. Further, when I go into Email Accounts
and test settings, it completes all actions. As soon as I do that,
the messages start going through without issue. Any ideas?

This is usually an indication you're not properly authenticating tot he
outgoing server. The Test Account button doesn't test the entire path and
unless you actually get a message from yourself, the test is invalid.

I've heard of ISPs changing authentication requirements without telling
their customers. On the Outgoing Server tab of your account properties
pages, have you specified "My outgoing server (SMTP) requires
authentication"?

 

[Guest]

I am not set to authenticate on outgoing. And I AM getting the test message
to myself. So does that complicate figuring out what's going on?

 

[Brian Tillman]

I am not set to authenticate on outgoing.

Try selecting that option.

And I AM getting the test
message to myself.

The test message doesn't test the entire path.