> ... This is all related to our users getting yahoo mail, the > session toggles back and forth and I suspect that is what is > causing them to be logged out of the mail interface when attempting > to dl an attachment. I was thinking that had something to do with > the proxy handling the http versus the proxy passing through http. ... Although I don't know what the problem is (do I hear somebody saying "darn"?), I don't think it's HTTP: vs. HTTPS:. I have a DansGuardian/Squid system, and hundreds of my users download email attachments from Yahoo (and other webmail sites) all the time without any interruption. And I haven't done anything special, neither for Yahoo nor for webmail nor for https:. thanks! -Chuck Kollars