For those of you that like to automatically save a copy of your personal messages that you send out.
1. Go to your profile settings.
3. Under the Modify Profile menu, click on the Personal Message Options.
4. Check off 'Save a copy of each Personal Message in my outbox by default.'
Next time you send a PM, the 'Save a copy in my inbox' will automatically be checked off.
You can also set the forum to notify you of a PM by checking off 'Show a popup when you receive a new message?'
There is also a Prune Messages option. Very helpful for cleaning up messages.
This is very helpful to remove old messages. It defaults to 14 days or older but you can use other settings. I often clear everything older than 90 days.