Greetings
I have received this mail from a player I would like to see this player banned from Grepolis.
I play this game for fun and as a Lady I will not tolerate guys hitting on me.
Click the envelope with the exclamation mark and follow the instructions to report the player.
Click the envelope with the 'no entry' sign to block the player.
Ok, ingame go to settings, click support in the miscellaneous section. Than pick the world you're using (I assume Knossos) and than type (Probably breach of rules or other, since this is sexual harassment.)
Also I suggest you keep the mails as proof. Although if I remember correctly, ingame mods can see PMs. Or you can direct them to this thread to see the proof.
also here's a link to help you with the different kind of mods, just a little extra info in case you'll need it. http://forum.en.grepolis.com/faq.php