I got this email and for the life of me I can't figure out how to archive.
There's quite a few I'd like to safe.

Your private messages box on Harley Davidson Forums has reached 90% of your allowed quota. To ensure that you do not reach 100% of your allowed messages, you should consider archiving or deleting some of your messages. Please visit this page to do so:
https://www.hdforums.com/forum/private.php

 

I believe what "archiving " is referring to is downloading your messages to your browsing device. After which, delete them all to free up space.

I just periodically delete everything without saving...don't see the point.

 

That'll come in handy the week before I quit donating money to the site, didn't know that was a feature