0x800ccc80 - Outlook 2007 stopped sending emails

Sp00n · 7 Jul 2010 at 16:21

I've come across this problem with one laptop that is out of the office today, for some reason its failing to send emails and there have been no changes server or client side since yesterday when it was working fine. I've google'd the problem and its all general rubbish like "tick the auth box" which is already done as the server requires authentication in order to send email.

The problem isn't with the server as I have tested the account from another computer at the same location and at a different location without a problem. My own pop3 account doesn't work on this particular computer either so I'm thinking this is more of a problem with outlook rather than the server.

The exact error message is "(0x800ccc80): 'None of the authentication methods supported byt this client are supported by your server" - I've also tried changing the SSL/TLS/Auto setting in the account and compeltely re-created the account under a new profile to no avail.

Has anyone got any genius idea's because I'm actually stuck right now :/

edscdk · 7 Jul 2010 at 16:26

telnet to port 25 of the email server and try and send an email via telnet.. it will probably tell you the issue...

something like

helo
mail from:[email protected]
rcpt to:[email protected]
data

now type some crap and at the end put a '.' and carrage return...

probably the firewall / av messed up,

Dano · 7 Jul 2010 at 16:27

Seen this once before and it was the account login name using capitalisation when it shouldn't have had any ie; [email protected] instead of [email protected]

edscdk · 7 Jul 2010 at 16:31

Sp00n said:
The exact error message is "(0x800ccc80): 'None of the authentication methods supported byt this client are supported by your server" - I've also tried changing the SSL/TLS/Auto setting in the account and compeltely re-created the account under a new profile to no avail.

Has anyone got any genius idea's because I'm actually stuck right now :/

at the risk of offending you (which I dont want to do) do you KNOW every setting for the account is the same?

maybe try and set up the same account on another PC to make sure it works there (this rules out the machine - and your typing)

Sp00n · 7 Jul 2010 at 16:40

Sp00n said:
The problem isn't with the server as I have tested the account from another computer at the same location and at a different location without a problem. My own pop3 account doesn't work on this particular computer either so I'm thinking this is more of a problem with outlook rather than the server.

^^see above, tried on another pc at the same place and another place and it worked fine.

Even tried re-creating the profile on his current pc to no avail.

Nothing has changed between today and yesterday client or server.