It appears that Yahoo! has some non-standard POP settings. Will SpamCop pop them? The settings that Yahoo! gives for paying customers are as follows:
Incoming Mail Server (POP3): plus.pop.mail.yahoo.com

Use SSL, port: 995
Outgoing Mail Server (SMTP): plus.smtp.mail.yahoo.com

Use SSL, port: 465, use authentication
Account Name/Username: Yahoo! Email Address
Email address: Yahoo! Email Address
Password: Your Yahoo! Mail password

Not sure if this means it will *only* work with SSL or not

Do you have a paid Yahoo account, or are you looking into it? If you have one, try it and let us know if it works.

POP Server: plus.pop.mail.yahoo.com
Username: Yahoo! Email Address
Password: Your Yahoo! Mail password
Leave on Server: Up to you
Use SSL: Checked
Error Count: Display only
Last Error: Display only
Delete this Entry: Unchecked

Does not seem that unusual a configuration. I believe gmail pop access uses the same settings as above, though I'm not sure SSL is required. You will be ignoring the SMTP stuff for SpamCop POP access. You could use those settings in your client if you wanted, I use SpamCop's SMTP exclusively.

I gave up on PopGate and paid for a year of Yahoo Plus mail access. I only thought the config was "odd" because I have never had SSL-enabled email before. Also, I overlooked the "use ssl" checkbox in configuring Spamcop's external servers. I figured at $20/year, that wasn't too bad...
I've gone in and reconfigured SpamCop's "external POP servers" to use SSL and I'll let you know if it works. I had to specify the port number in my email client, so I wasn't sure if SpamCop woudl work or not...

Well, if anyone is interested, it appears to be working. Just don't forget to check the box that says "use SSL". I initially overlooked that box and was wondering why it didn't work. Now that I've got that checked, everything seems to be working fine and Yahoo is coming into my SpamCop account just fine now.

Always interested, just don't have all the answers when needed. Still working on that <g>

Thanks for the feedback!

I need to try this , thanks

For those of you directly POPping Yahoo mail... this message I recently found on the Yahoo blog may be for you:

http://feeds.feedburner.com/~r/ymailblog/~3/308403149/

Basically, they are having major problems with the recent rollout of new features (including SSL) and are rolling back the features.