Q: mail doesn't remember my password

Hey abridge683,

I found this, which might apply to your situation:

Use of Secure Tokens for Authentication

When you access iCloud services using Apple’s built-in apps (for example, Mail, Contacts, and Calendar apps on iOS or OS X), authentication is handled using a secure token. Using secure tokens eliminates the need to store your iCloud password on devices and computers. Even if you choose to use a third-party application to access your iCloud data, your username and password are sent over an encrypted SSL connection.

 

via: iCloud: iCloud security and privacy overview

http://support.apple.com/kb/HT4865

I would try the following, see if that helps:

1. Choose Preferences from the Mail menu.
2. Click Accounts in the Preferences window.
3. Select your iCloud account from the list of accounts.
4. Click the Advanced tab and verify these settings:
   • Authentication: "Apple Token"

 

via: iCloud: Troubleshooting iCloud Mail

http://support.apple.com/kb/TS4002

Best,

Delgadoh