QUOTE(jongrose @ May 16 2007, 07:09 PM)

Are you trying to use Yahoo mail through a separate mail client (ie: Outlook, Thunderbird, etc)? I believe Yahoo beta is simply an enhanced version of their webmail system that is written in AJAX format to look more like a mail client within the bounds of your webmail browser.
If you're using SBC/AT&T Yahoo mail, I believe they have changed the POP/SMTP servers recently and so you might look into that also.
Nope... not using an external client. Yes, Yahoo Beta is just an "enhanced" version, but it may be different servers, or it may be the information that SpamCop is expecting is different, but the bottom line is it doesn't work... which I should have looked more carefully before asking. :-)
Just to be clear... My Yahoo mail is "POP"ed from yahoo by Spamcop. No external client, but there's something different enough that it doesn't work with the Beta. No big deal... I don't check Yahoo that much directly anyway. :-)
For now, I'd suggest marking this thread as "closed"