Well heres an odd one for ya - I have been using ymail successfully with the stock email app for a long while now (at least 4 months) and have had no problem changing from one rom to another with no real issues with email (just re-entering settings as per instructions in another thread) however.... Last night I decided to give the Baseband C_01.3E.03P update a go and after reactivation, restarting, etc -- BOOM -- now YMAIL says "Setup could not finish - Username or password incorrect" After several tries throughout the night and now this morning I took my wife's Droid without the Baseband C_01.3E.03P update and - voila it still works perfectly with my username and password. I have tried loading a couple different roms but to no avail. Thoughts? (Addition) After continuing my search I found some new settings that have worked successfully. I tried it just a few minutes ago with new instructions, and it worked for me. Choose IMAP as the protocol, not POP3, and then try to use these settings: Incoming settings Email address: firstname.lastname@example.org Username: email@example.com Password: ****** IMAP server: android.imap.mail.yahoo.com Security type: SSL Server port: 993 Click "Next" and it will bring you to the next page of settings: Outgoing server settings [X] Login required Username: firstname.lastname@example.org Password: ****** SMTP server: android.smtp.mail.yahoo.com Security type: SSL Server port: 465 Hope this helps!