How can I change my forum's title without changing the name?

[Jeremy8]

I want to make the forum name and title (<title> title</title>) different. This is because I want my title to be a little more descriptive for search engines... but it looks way too long when it shows the name. For example, when PMing someone after getting an infraction it says the whole title, including the part I added. "You have received an infraction at My Forum - A quick description of my forum" is the title of the PM instead of "You have received an infraction at My Forum"