Manage multiple email accounts, what software to use?

[mirrorlake]

Looks like a dumb question. I have several accounts at mail.yahoo.com. I've tried several software but got the same result. The first account I set up is ok. The rest accounts can not log in correctly. I am very sure that all info I input is correct but the software just won't work. Appreciate your help.

 

[Miramonti]

Bizarre. I've always used outlook express with my many yahoo addresses as well as isp addresses, checking email at the same time (one after the other) but have never had a problem that wasn't an occasion server issue on the other end.