I have outlook 2007 andf when I try sending a message it just goes to the out
box but doesn't send. When I click on the send and receive button it says
556 CLIENT AUTHENTICATION REQUIRED. USE ESMTP EHLO AND AUTH.
Please help
F.H. Muffman - 18 Mar 2008 03:18 GMT
> I have outlook 2007 andf when I try sending a message it just goes to
> the out box but doesn't send. When I click on the send and receive
> button it says 556 CLIENT AUTHENTICATION REQUIRED. USE ESMTP EHLO AND
> AUTH.
Talk to your ISP/Mail Provider for the proper settings. Also try disabling
any Anti-Virus mail proxy that might be in the way.

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-f.h