Anita,
Incredimail has a feature where we can tell if someone reads a message
but I have that turned off. That is not important to me.
Just as well. These days most email interfaces defend against such beacons anyway.
Mike no reason to report this to incredimail since it worked fine in
yahoo. It seems to be a iogroup problem to me.
In any compatibility problem there's usually some amount of finger-pointing. You say it is a Groups.io problem because the messages pass through Yahoo Groups ok. Groups.io says it is an Incredimail problem because messages from other email service pass through ok. Standoff.
Undoubtedly it is a bit of both. My guess is that some Incredimail messages (those with borders) do something in the HTML which doesn't work with the way Groups.io adds its footer to the messages.
You're interest in selecting "Traditional" mode suggests something of the sort - Yahoo Groups add footers differently in "Traditional" versus "Full Featured" subscriptions, and if one works but not the other at Yahoo Groups then that would seem to point to that being the source of the problem.
If that's the case, then maybe it is a second finger pointing at Incredimail's HTML code.
Shal
Shal Farley