It's hard to tell what's going on from the bounce notices. It's definitely the correct account she's emailing from, but it consistently ends up being sent to the group email. I don't think she knew the group email before, since she's not subscribed yet, so it's not clear to me where that's even coming from.
I sent a subscribe email from another email, and got a confirmation email back, so it worked there. Though really, the fact that subscribe request was sent should have been enough. Why another confirmation from the same address? That's just one more hoop for people who are not tech savvy or have neurological disabilities to get hung up on.
But what happens if I send a subscribe email from an email that is already subscribed? I just sent her an email with the subscribe email CC'd, and asked her to reply all. I haven't heard back from her yet, but I would have thought that I would at least get some sort of response from the groups.io system that I'm already subscribed. But so far, nothing has come through, not even a bounce notice.
