Problems sending mail vai SMTP with Evolution

[Betsy Hansel]

Hello,
I successfully set up my evolution POP3 email with one of my accounts about
a month ago and was using it without problems until today. 

What happened today?

I added another email account that uses IMAP, leaving the POP3 as the
default account.

In trying to troubleshoot, I noticed that for some reason the POP3 Account
now specified using SSL encryption and "Plain" authentication. I changed
this to remove SSL encryption and set up login authentication.  No luck.

I tried "forget passwords" since two weeks ago I updated my POP3 email
password and thought maybe the old one was stuck there. No luck.

Since I had not done a lot of customization, I deleted the POP3 account
entirely and set it up again. No luck.

I tried setting the IMAP account as my default, but I could not send from
that one either. 

Other suggestions please?

Thank you!
Betsy