John Hinton wrote: > First, this seems to be happening only with two users under one domain > on the server. SSL for SquirrelMail is not enabled. I can't find a thing > unique to these two users which would cause this error. I can't find > anything in the logs to help. Is this a new installation of SM or an existing installation? Any plugins that may be causing this issue? I've been using SM for about 8 or 9 years now though all of my installations are 100% SSL(I handle SSL redirections etc in apache rather than in SM's config or plugins). I suggest testing it in firefox and using the live http headers plugin to see exactly where the browser is trying to go. nate