Anyway, just inbetween, there is alway the possibility that my exchange server sends an ETRN and the dialup link goes offline for some reason - DDNS wouldn't be aware of that fact. In the meantime, another computer might get my former IP adress and the remote mail server would try to deliver the queue to that computer. It's only a little chance that this happens, but it bears some risk. I wouldn't want my mails to be read by some unknown person. Mark