[Dovecot] Regarding the UIDLIST

Hi,

I wonder if the UID's in the UIDLIST will ever change for a given email? Eg with courier it is recreated sometimes, but can i 100% rely on that the UIDs will never change? Or is there anything else i can rely on that will never change? The reason I'm asking is that i want to link certain tasks etc etc to an email, and the only way to get a unique link is that if the uidlist or something else unique never changes.

Thank you.

-- Kjartan