Thomas Güttler writes:

Yes, good idea. Up to now I use two different mail adresses. But if they are the same, it should work.

Except that you now face a new annoyance: you should clean up the addressees to ensure that googlegroups is *not* visible in the addressee headers, because anybody not subscribed at googlegroups who does reply-to-all to your message without doing their own cleanup will get a bounce message from Google. (At least it used to, I wouldn't know now: my MUA does the cleaning for me. But few users have MUAs that smart.)