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I sent a message out to a subgroup a little while ago, and two people did not get it. When I looked, one seems to have disappeared from the subgroup, while the other had disappeared from the main group, and therefore the subgroup I suppose.

Both claim not to have unsubscribed, and there is nothing in the Activity log to show them unsubscribing. Both of them have successfuly sent messages to the subgroup on 24 August.

Is it possible that they have somehow unsubscribed and the Activity log does not report unsubscribes? Otherwise I am stumped!

Curiously, normal messages sent to the group arrive with the From: address set to the sender's e-mail, eg, fred@...

The one who disappeared from the subgroup sent a message as a test, and it was delivered to the subgroup, but with a from address of fred@.... In what circumstances is the address rewritten like this? It may be a clue.

Email addresses are rewritten to make them compatible with services that use DMARC.

Since the archives of this group are public, email addresses included in posts are fig-leafed to prevent some problems.? If you need to include one, it's best to use a dummy address, then replace the @ with [at] so the details are available.

Duane
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David,

Both claim not to have unsubscribed, and there is nothing in the
Activity log to show them unsubscribing.

There shouldn't be a circumstance where a member leaves or is removed from a group or subgroup without that action being logged in the group or subgroup. So that's something I'd report to [email protected]

But check carefully before doing so. Notably, the activity log search does not do partial matches (whereas Members list search does). Enter the former members' email addresses in full to be sure you find all activity log records for them.

I think there was a report not to long ago of an unlogged exit from a group, but IIRC that involved the member deleting their groups.io account - which wouldn't explain someone leaving the subgroup but not the primary group.

The one who disappeared from the subgroup sent a message as a test,
and it was delivered to the subgroup, but with a from address of
fred=mac.com @ xxxx.groups.io. In what circumstances is the address
rewritten like this? It may be a clue.

As Duane mentioned, that form of address modification is done with certain email services (you'll see it for yahoo.com and aol.com addresses too). It doesn't signify anything.

But... Did he/she send that test after being returned to the subgroup? Or does the subgroup allow non-subscriber posting (was the message held pending before posting)? Or... ???

Shal


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David,

Both claim not to have unsubscribed, and there is nothing in the
Activity log to show them unsubscribing.

There shouldn't be a circumstance where a member leaves or is removed from a group or subgroup without that action being logged in the group or subgroup. So that's something I'd report to [email protected]

As is often the case, writing up a bug report makes you look at seemingly-unrelated things. It turns out to be a timing issue and a facet of being a moderator. A moderator of a main group can send messages to a subgroup they are not a member of, so it might appear they are a member, but not really.

We learn something new very day..... :-)

Cheers

David