On 29 Jun 2017, at 14:54, Patrick Pritchard wrote:
1. In the Mailing Lists smart folder, sometimes new “lists” are created with absolute gibberish for names, such as “6141152_5959791”. I surmise that this is because the senders are using auto-email generators to email in bulk, and MlMt is grouping these accordingly…
Yes, and it's even worse: some of these set the "List-Id" header to something different for every message. It's a misuse of the header and breaks (I suspect intentionally...) the utility of the header as designed. The worst offenders in my opinion with this are the spam-for-hire operators ExactTarget & MailChimp, who get that ranking because they send enough legit mail that I can't just junk all of it.
Is there a way to fix this and/or adjust this? After a day I may have 10 “new” mailing lists show up, which aren’t actually lists. (But legitimate lists do show up, legitimately, which is nice!).
To handle the aforementioned miscreants, I've added conditions to my Mailing Lists mailbox that the List-Id header does not contain 'list-id.mcsv.net' or 'xt.local' which are fingerprints of MailChimp and ExactTarget respectively.
Another approach I use for my most active discussion lists is that I sort them on arrival into their own IMAP (not "Smart") mailboxes that are all inside a "Lists" folder, so that I can then have a "Smart" mailbox that contains the past fortnight of messages from all mailboxes underneath "Lists" split into submailboxes by mailbox name. This is also helpful for mailing lists that don't use List-Id headers, since the rules sorting messages on arrival can target whatever arbitrary header fingerprints work for a particular list.
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