How do I reset Apple's Mail, in Lion, to default settings?

Question

I have been having a bunch of email problems and want to start over. I have deleted all the IMAP accounts from Mail. What other files do I need to delete, hidden and otherwise, to make Mail (and only Mail) just like a clean install?

Answer 1

The following directories should be empty:

• ~/Library/Mail
• ~/Library/Mail Downloads
• ~/Library/Application Support/Mail
• ~/Library/Caches/Mail
• ~/Library/Caches/com.apple.mail

The following files should be removed:

• ~/Library/Preferences/com.apple.mail.plist*
• ~/Library/Saved Application State/com.apple.mail.savedState