Thanks for your replies. Your scepticism mirrors my own, but if someone sends a message to the wrong address by accident, as can easily happen, it's usually easy to spot.
I'm familiar with viewing full headers. However, my email program doesn't seem to allow me to look at the full headers for individual emails any more. The relevant message triggered a new thread, for which I can only view full gobbledygook for the most recent message, which was not the problem message. That said scrolling down the raw version of the thread, the "to" line of the problem message shows the owner's address
> *Cc:* 'TA email group moderators' <[email protected]>
and no sign of the group address. However, I received the message only via the group address. The other odd thing is, it was actually part of an ongoing conversation, which had been going through the owner's address until that point.
The "from" line shows the group address, but I think that's normal for any message going through the group in some way.
