I've been using GMail for the last few months for all my mailing lists. I find it incredible with its auto-threading of subjects which makes it useful with mailing lists. I used to have all my mailing lists come in as feeds into Bloglines but not since I discovered GMail.

However, today I noticed that there were an extremely unnacceptable amount of false positives in the spam folder. Not a single one of them actually was. Whatever GMail is doing for spam filtering is totally horrendous.

I wish I could turn off there spam filtering but I see no option for doing that. If I wanted to I would pass the mail through SimpleFilter first and then onto GMail and I've have no problems.