How long can you pause a PBEM game?

[mdsmall]

Hi - I have started a PBEM game with a friend but for various reasons, we both would like to take a pause in playing it for a while. Does anyone know how long the game will remain active on the PBEM server if neither side makes a move?
Or, put another way, how often do we have to make a move to keep the game alive?

[EarlyDoors]

I think that it is 1 turn every 30 days

[DmitryN]

my game with Hamburgermeat lasts already more than 1 year of real life. for some reason even if he respond a turn later than in 30 day the game automatically dont show him resigned (e.g his last turn was July 14 now 45 days)