Thanks again for the advice. I was able to finally connect to receive email, so I know I'm connected to the incoming mail server. I still can't send email though. I'm not able to connect to the outgoing server. It is a POP3 account. I've entered what I think are the correct server names, but I can't connect to the outgoing mail server. I did delete the com.apple.mail.plist file and restarted Mail, but the start up screen still had some information already added in the fields. After my latest attempt to set up the account, after waiting for quite some time, I did an message saying "unable to connect to smtp server. Make sure username and password are correct, etc. I clicked continue and was able to get into Mail. For some reason, this particular ISP uses the same server name for both incoming and out going email. I haven't run across this before. Also, in Mail Preferences, under Accounts, the Outgoing Mail Server (SMTP): field has the correct server name followed by (Offline). I can't seem to take this server online. Going to the advanced tab shows the "Use default Ports" (25, 465,587) radio button selected. Authentication: Password, etc.. I don't know if this helps you or not. Thanks again for the advice... Ed