SRM system showing approval mail with saphtmlp link

The other day, one of my colleagues came over to me and asked my why our approval emails sent out to all the managers had a weird logon link in them
I logged on to the system and said, "what do you mean ?". As I saw nothing wrong.

"Well", my colleague replied, "when I look at the properties of the mail in SOST or SOSG, it contains a lot of weird stuff in front of the actual address, but when I remove that it works".

I looked, and I saw what he meant. There was a reference to the sap HTML viewer, even the approval link had the sapevent infront of it. And the reason for sending out these mails was exactly to be able to send them to someone without access to SAP. I pondered this for a while, and I looked at notes, read documentation. Then it occured to me - But if we hadn't changed this in the last 6 months, then why had noone complained ?
So on a hunch that SAP would render this differently in SOST than after transmission, I asked my colleague to get a hold of a mail from one of the recipients. And lo and behold, SAP DOES infact render this differently when viewed from within the SAPGUI. The links were perfectly created in the mails people recieved.
Note to self: Ensure the ability to test as an end user.....