[HERCULES] Fixed Bug 8151
map server will no longer complain when it receives mail data for a character that is no longer online (its a pretty silly thing, consider you login, it requests mail data, you logout while it still hasn't arrived -> it annoys you with a warning when it arrives)
Special Thanks to Frost!
http://hercules.ws/board/tracker/issue-8151-at-first-time-show-error-in-console/
https://github.com/HerculesWS/Hercules/commit/f806586acc2e34068b5e125661916caa594de04f