0x800CCC0F error

[T5]

OL2003

I have my POP and SMTP settings correct (I have run test message and it
sends and receives) yet when OL automatically sends and receives, I get the
above error with server responded on 553 unknown address.

I have increased server timeout but still nothing, any help is appreciated

 

[OS]

It's a bit tough to know exactly what the problem is but one suggestion is
that you have 2 email addresses set up; one which is working and one with
erroneous settings - maybe set up by mistake when you were configuring OL.


Oliver

 

[Brian Tillman]

I have my POP and SMTP settings correct (I have run test message and
it sends and receives) yet when OL automatically sends and receives,
I get the above error with server responded on 553 unknown address.

I have increased server timeout but still nothing, any help is
appreciated

<http://support.microsoft.com/search...&title=false&mdt=&pwt=False&res=20&1033comm=1>

 

[T5]

Thanks guys but nothing has worked, I have tried changing the mtu size, the
server timeouts new account settings everything but outlook still reports
the error. The thing I do not understand is that when I click send/receive,
the send receive notification in the bottom rh corner says sending 1 of 2
but I dont have any messages that are in the outbox so what is it trying to
send?

Is there a fix for this?

 

[Brian Tillman]

Thanks guys but nothing has worked, I have tried changing the mtu
size, the server timeouts new account settings everything but outlook
still reports the error. The thing I do not understand is that when I
click send/receive, the send receive notification in the bottom rh
corner says sending 1 of 2 but I dont have any messages that are in
the outbox so what is it trying to send?

Possible undeliverable read receipts. See if this helps:
http://www.outlook-tips.net/howto/delete_rr.htm

 

[Just]

Possible undeliverable read receipts. See if this helps:
http://www.outlook-tips.net/howto/delete_rr.htm

Great advice Brian!

I had the same problem and the cause was, in fact, undeliverable read
receipts. Used OutlookSpy to delete them. Problem solved!

Just