On 22 Apr 2016 at 18:35, Bruce  Johnson wrote:

> There are separate issues here:

> 1) threading is being broken by one or more email clients/servers
> out there. Not a lot that can be done here about that.

> 2) Email being delivered to spam, even when the address is
> whitelisted. That is strictly a server side issue. Yahoo, for
> example, does not publish a `spam score´ per se, like Spam Assassin
> or Barracuda does. Oh no! They have to have their own system which
> injects about 750 bytes of 'random characters that look like base64
> encoding but arenTMtTM into the headers. I cannot determine from that
> why they would consider one message spam and another from the same
> person on the same mai?ing list t? be  ham.

> Unfortunately neither issue can be solved by either me or
> simplelists.

> DMARC/DKIM *may* be broken on some email *recipient´s* side but
> Simplelists does pass properly configured testing for that. I know
> that because we control our own email servers and I can check that
> directly. (and again, that should break every message from a
> particular sender/domain not just some of them, because it does not
> rely at all on message content)

> If the recipient´s servers are misconfigured, all bets are off.
> DMARC/DKIM depends on both sides working correctly.

Well, here goes the first test. Let's see what it looks like on gmail
& yahoo.
--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com