The GD script to generate the image is very easy and small, but, because I know next to nothing about BML, the big question that pops into my mind is how to display that image inline.
It would be easy if the script was simply a CGI that gets passed the email-address and returns an image, but could this be done inline the userinfo.bml page, too?
I've only seen this done once in Embedded Perl.
Any ideas on this?
Update: I followed both directions, either generating an image or encoding as pure entities. The entities could now even be linked again like the unmangled address.
Anyone who wants to give it a whirl?