Outlook receives but won't send

[CarolaDubner]

I'm using Outlook 2007 on Windows XP. I have 1 account that receives email
just fine, but I can't send any email. It looks like there's a partially
sent email somewhere, because if I have 1 email in the Outbox when I click
send, Outlook look will say it's "sending message 2 of 2" before it stops
trying; if I have 2 emails to send, it says "sending message 3 of 3" before
it quits.

The error message is "Sending reported error mesage 0x80004005". Also, I
have a second email account with the same provider that works both sending
and receiving just fine.

(Sometime is also give error message 0x80042109, that it can't connect to my
SMPT server, but I know that's wrong because I can receive messages just
fine.)

 

[Roady [MVP]]

There are a couple of things that you should check here;
-verify that your SMTP settings are indeed correct (including the port
number). Your last assumption is incorrect; being able to receive doesn't
mean that your outgoing settings are correct as well unless you are working
with an Exchange account but my guess is that you are working with POP3 or
IMAP.

-verify that you have enabled authentication for your SMTP server when you
are not on the same network as your ISP.
See http://www.msoutlook.info/question/36

-if you have a virus scanner that integrates with Outlook, disable this
integration and try again.
See http://www.msoutlook.info/question/20

As for the hidden message;
There was a counting bug in Outlook 2007 when you had multiple accounts
configured. This issue has been corrected in Office 2007 Service Pack 2. I
recommend that you update your machine and see if it still is an issue. If
so, then it could be a stuck read receipt. In order to remove it see;
http://www.howto-outlook.com/howto/deletereadreceipt.htm