Slitherine

The server displays the turn number correctly, 15 in this case.
But the email notification evidently multiplies the turn number by the number of players, give or take a turn. 59 in this case.
I wonder if this is related to the issue with the date in a single turn moving forward one date pr player involved.
The proof is in the pudding

The email system is independent from the games, it doesn't know what a "turn" is. It counts how many uploads/handovers are made (which is why it's quite large for a 4 player game)