On 8 Apr 2004 at 10:06, Martin Burns wrote: > > But how you make a solution like that work with YahooGroups or > > TheChat? I dunno. There needs to be a filter, I guess, so that I can > > let > > certain IPs mail to that address, while everyone else gets the > > autoresponder. > Simple whitelisting. Simple? There aren't any hooks in "vacation" for setting up a whitelist. You're going to have to write custom software to do it - not the world's biggest challenge, I admit - and then figure out a way to keep the whitelist up to date whenever Topica or TheChat, etc., add or replace a server. That part *would* be a challenge.