Posted by Jim Westergren on Jan 14, 2011; 8:09pm URL: https://support.nabble.com/Gravatar-support-tp5922084p5923181.html
The email is not exposed of course. Just the hash so there is no worry of that. The code I gave is PHP which is not visible in HTML. I don't know what language Nabble is written in but the code should be similar.