Some ISPs have implimented a policy whereby you must be logged on to them to
send an e-mail through their network. My example is Cox Communications. I
have a primary residence and a vacation home. Cox is my ISP at my primary
and Comcast is my ISP at the vacation home. When I'm using Comcast, Cox
will not allow me to send an e-mail using my Cox e-mail address. That is
why I also have AOL, because I can use my AOL address as my permanent e-mail
address to send and receive. I can still receive any Cox e-mails while
using Comcast, I just can't send using my Cox e-mail address.
If I am travelling and I connect to an ISP other than Cox, I cannot send
using my Cox address. Another reason for AOL.
I am trying now to use the new MS Hotmail Live (free), but, so far, I
haven't been able to debug settings. If I can get it to work, I can get rid
of AOL and use the free Live service.
Bottom line, if you are logged on to the ISP who holds your email account,
then you do have some kind of a problem. You can log on to your ISPs home
page and look for technical support. They all give the settings you need to
put in the Windows Mail account settings
Good luck
Any error messages