Running a MacPro 3,1 with OS X 10.7.3. Using Mac default mail client. For the past few weeks I have had an issue with the Keychain not remembering the stored passwords for my various email accounts. My email accounts will prompt me for my password, and I elect to save it to the keychain. Sometimes this works, but lately the problem just recurs. So yesterday I purged all entries in the Keychain, and reset all my email accounts. Then this morning I was again prompted for the password for one of the accounts, which I saved to the Keychain again. This is annoying as I can't figure out why my Keychain is not working well. Any ideas on how to solve this?