Comment 205 for bug 52667

@Jens,
My example show why this bug happening. This is not out of scope.

I attach one more header, without "follow-up-to" and it go to sender when we reply it.

So, we have 3 situations:
- Message with follow-up-to, (that go to sender)
https://bug45715.bugzilla.mozilla.org/attachment.cgi?id=362707

- Message without follow-up-to (that go to mailing list):
https://bug45715.bugzilla.mozilla.org/attachment.cgi?id=362708

- Message without follow-up-to (that go to sender)
https://bugzilla.mozilla.org/attachment.cgi?id=363826

Correct, in all this 3 sitautations need be: Message need go to mailing-list when I reply it. And not to sender.

@Matus,
I don´t have any extension installed.

Best regards,
Renato