I've seen several reports that indicate the problem can be solved by
selecting "log on to incoming mail server before sending" in the account
settings. You might give that a try; please post back if it works.

Hal
--
Hal Hostetler, CPBE --
Senior Engineer/MIS -- MS MVP-Print/Imaging -- WA7BGX
http://www.kvoa.com -- "When News breaks, we fix it!"
KVOA Television, Tucson, AZ. NBC Channel 4
Still Cadillacin' - www.badnewsbluesband.com

"John Q. Public" wrote in message
ups.com...
Hello all:

Had been running Office 2003 and now have installed Office 2007 on my
desktop. OL 2003 had been operating perfectly. After the installation,
I am getting an authentication error when trying to send out emails
from OL 2007. I compared the settings on my laptop (running Office
2003) and they are the same. I am curious if there is another setting
in Outlook/Office 2007 that I am unaware of.

BTW, if I remove the "smtp" before my server name, I get the following
message:
Send test e-mail message: Outlook cannot connect to your outgoing
(SMTP) e-mail server. If you continue to receive this message, contact
your server administrator or Internet service provider (ISP).

If I have the "smtp" before my server name I get this error message:
Send test e-mail message: None of the authentication methods supported
by this client are supported by your server.

Thanks