Calendar data is vanishing after 6 months?

[NathanL]

We've had a few reports from users that make use of their historical zimbra calendar data, that calendar data older than 6 months seems to be getting pruned.

We're not certain yet if this is a client side thing, or a zimbra config option.

I haven't come across a server side option to purge old calendar data. Does anyone know if one exists?

[csamoila]

We have the same problem. Can anyone confirm this? And if yes can we change somewhere a parrameter?