On Mon, 06 Jul 2015 12:09:13 +0100
Andrew Young <mail@...> wrote:

> On 06/07/15 12:01, E. Liddell wrote:
> > The possible solutions that occur to me are three:
> >
> > 1. Whack GMail over the collective head with a blunt instrument until it behaves
> >    itself (good luck on that)
> > 2. Have the list mailer check for key phrases in bounce messages and ignore
> >    them if they're found
> > 3. Increase the list mailer's bounce tolerance to 5-10 messages, and have
> >    affected users use a filter to auto-trash the messages unread.
> >
> > I'm pretty sure I've been unsubscribed without noticing (because I do auto-trash
> > the "threat messages") at least once--that would have been around April 1 of last
> > year.
> >
> 4. Use a different mail list backend.

Do you know of any that specifically work around Google's overzealous filters?
If not, I doubt it would help--unsubscribing dead accounts is a reasonable thing
for ML software to do, and checking whether or not messages to the account 
bounce is an easy way to do it . . .  

E. Liddell