I just had to reset my password on the site.

when I received the Email from the bbs server, I noticed that (while the message text was correct) the link associated with the "click on" address is different.

Instead of going to the forum, it goes to:

https://u2310383.ct.sendgrid.net/wf/click?upn=xxxxxx

where xxxxxx is an encrypted looking hash.

Has you server been hacked, or is this expected?

Marc