Restore some commits from trinitycore2 3.1.3

--HG--
branch : trunk

src/game/BattleGround.cpp

@@ -922,10 +922,6 @@ void BattleGround::SendRewardMarkByMail(Player *plr,uint32 mark, uint32 count)
         // save new item before send
         markItem->SaveToDB();                               // save for prevent lost at next mail load, if send fail then item will deleted
 
-        // item
-        MailItemsInfo mi;
-        mi.AddItem(markItem->GetGUIDLow(), markItem->GetEntry(), markItem);
-
         // subject: item name
         std::string subject = markProto->Name1;
         int loc_idx = plr->GetSession()->GetSessionDbLocaleIndex();
@@ -940,7 +936,9 @@ void BattleGround::SendRewardMarkByMail(Player *plr,uint32 mark, uint32 count)
         snprintf(textBuf,300,textFormat.c_str(),GetName(),GetName());
         uint32 itemTextId = objmgr.CreateItemText( textBuf );
 
-        WorldSession::SendMailTo(plr, MAIL_CREATURE, MAIL_STATIONERY_NORMAL, bmEntry, plr->GetGUIDLow(), subject, itemTextId , &mi, 0, 0, MAIL_CHECK_MASK_NONE);
+        MailDraft(subject, itemTextId)
+            .AddItem(markItem)
+            .SendMailTo(plr, MailSender(MAIL_CREATURE, bmEntry));
     }
 }