iirc, i have had this problem before. (not getting email notification before timeout)
recently i have been forced to log in to the forum despite being logged in to ogs.
i got a timeout in this game: https://online-go.com/game/19549986.
i got one email on 9/19.
also, major kudos to whoever came up with the zero that lets you cycle through the games where it is not your turn to move.