I am trying to get Mail (Vista) set up to send and receive mail from my POP3 Yahoo account. I am able to receive mail but when I send it, I get the following error

The host 'plus.smtp.mail.yahoo.com' could not be found. Please verify that you have entered the server name correctly.

Account: 'plus.pop.mail.yahoo.com', Server: 'plus.smtp.mail.yahoo.com', Protocol: SMTP, Port: 465, Secure(SSL): Yes, Socket Error: 11001, Error Number: 0x800CCC0D

Has anyone seen this as well?

I'm going out on a limb here:

Socket error: 11001

Socket error 11001, how to repair this problem

Try to take off the plus to rename your smpt to
Smtp.mail.yahoo.com

And also for incoming pop3, set this # to 995