Tiny Link can generate URLs ending with punctuations (which outlook doesn't like)

The "tiny link" for email feature built into confluence is super useful, thank you for it. Unfortunately, it is now generating links like:

http://wiki.mydomain.com/x/_4M-

Paste that link into outlook and it will fail to auto-link the hyphen, linking just:

http://wiki.mydomain.com/x/_4M

Which doesn't work. Supremely non-useful. I wrote a script to create and delete a page automatically, as confluence appears to be cycling through values, but I've gone through hundreds and I'm not past the hyphens yet.