Unable to authenticate with SMTP

[KerryReid]

Hi All

I have just installed Office 2010, I have 3 different accounts on 3 different servers, all of which are POP / SMTP. I then authenticate with the SMTP server when sending mail using the same login settings as the POP account.

My problem is that the 2 accounts I have on exchange servers WILL NOT auth the SMTP, it rejects the login details, yet accepts them for POP. The other server is hMail and works fine....

One exhange server is 2003 SBS, the other is 2008 STD.

Any ideas?



Thanks

Kerry