User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.11) Gecko/2009060309 Ubuntu/9.04 (jaunty) Firefox/3.0.11 Build Identifier: version 2.0.0.21 (20090409) I have been missing the following feature for a couple of years in thunderbird. I would like to be able to filter on mailinglists. So that I don't have to figure out which kind of header this mailinglist uses to filter it. Evolution has had this feature for years and I miss it. Reproducible: Always

This would be a good candidate for a custom search action, once bug 495519 lands. Do you happen to know technically what the filter is actually looking for in the message to call it a mailing list?

(In reply to comment #1) > Do you happen to know technically what the filter is actually looking for in > the message to call it a mailing list? List-Id seems to be the universal header here. If you filter on custom header with List-Id, that should do what you want it to.

(In reply to comment #2) > (In reply to comment #1) > > Do you happen to know technically what the filter is actually looking for in > > the message to call it a mailing list? > > List-Id seems to be the universal header here. > It is for sure when mailman is in charge is it true with yahoogroups and or LISTserv based mailing list ?

(In reply to comment #2) > (In reply to comment #1) > > Do you happen to know technically what the filter is actually looking for in > > the message to call it a mailing list? > > List-Id seems to be the universal header here. > > If you filter on custom header with List-Id, that should do what you want it > to. It would do what I want to do, but it is more userfriendly to just have thunderbrid figure out that the List-Id header is there and be able to create a rule for that mailinglist, without having to specify the emailaddress of the mailinglist.