Hello!! Thou my question is not realated to ISA but mayb some one might have experince'd the same senario ... Currently i'm ruuning Exchange2K in my Domain with IMAP enabled. Now i want to restrict dailup user's to first connect to my VPN server before accessing their mail's either through outlook or through web. One thing more i'd like to mention here user's might dail a diffrent Internet Service Provider every time to access their mail's ... Do any one have any clue here how can this b implemente'd Regards, Mahib.