Mail messages are marked "junk" in the outgoing mail box

Question

For some time all my outgoing email messages have been marked as "junk" in the sent mail box. Today found that if I do not mark my personal information in my address book as "Me" my sent messages are no longer marked "junk". Does anyone know how I can fix the problem so my personal information can be marked "Me"?
iMac intel   Mac OS X (10.4.8)  
iMac intel   Mac OS X (10.4.8)  

Answer 1

The following procedure thoroughly gets rid of all the files used by the junk filter, so that Mail creates them anew, and should fix the problem in the cases where the simple procedure provided in my first post doesn’t:
1. Quit Mail if it’s running.
2. In the Finder, go to ~/Library/Mail/.
3. Locate LSMMap2 and move it to the Trash. This file stores information about what does and doesn’t constitute junk, and allows the junk filter to learn. Deleting this file is what Preferences > Junk Mail > Reset does. The file was called LSMMap in early versions of Mail; delete that as well if you see it.
4. Locate any MessageRules.plist (Mail 2.x) and/or MessageSorting.plist (Mail 1.x) files and move them to the Desktop. This is where Mail stores all the rules, including the rule that governs what the junk filter does.
5. Locate DefaultCounts and move it to the Trash. This file keeps statistics about the number of messages that have been marked as junk, either automatically by the junk filter or manually by the user.
6. Look for the account folders. The name of each account folder starts with the account type (POP, IMAP, Mac), followed by the account username and the incoming mail server. Open each of the account folders, locate the Junk.mbox or Junk.imapmbox folder within it, and move it to the Trash if present.
7. Go to ~/Library/Mail/Mailboxes/. Locate any Junk.mbox mailboxes there (their name may include the account name in parenthesis), and move them to the Trash.
Note: Steps 5, 6 and 7 may be unnecessary. Also, messages in Junk mailboxes with an .mbox suffix are stored locally and will be lost forever as a result of doing steps 6 and 7. If there is a chance that you have legit messages there that you want to preserve, either try skipping those steps, or move the messages to another mailbox in Mail first, or move Junk.mbox to the Desktop (to be imported back later) instead of to the Trash. Junk mailboxes with an .imapmbox suffix aren’t a concern because they are stored on the server and Mail would rebuild them automatically.
8. Open Mail. As a result of removing the rules file, the junk filter will be disabled now. You may want to either tell Mail to go offline immediately after opening it, or shut down the Internet connection before opening Mail, to prevent it from downloading anything until the junk mail filter has been enabled again.
9. Go to Mail > Preferences > Junk Mail, enable junk filtering, and configure it however you wish.
10. Go online again if you went offline in step 8.
If the above solves the problem and you don’t have any rules you’d like to preserve or recreating them is not a daunting task, just trash the rules files that were moved to the Desktop and be done with it.
Note: For those not familiarized with the ~/ notation, it refers to the user’s home folder. You can easily locate any of the folders referred to in this post by copying the folder path here, doing Go > Go to Folder in the Finder, and pasting the folder path there.