Mail in streams

Mail in streams

I have 2 groups setup.  1 for my bills and another for voicemails from my home number.

There are two people on each group.  the bills was setup almost a year ago.  the mail that is sent to it is in the streams.  it works fine.

I have setup the voicemail one a few weeks ago but the mail is being sent to it and going to the users BUT not staying in the streams.  how can I fix this.   I have compared both groups and their settings and they are exactly the same.    Am I missing something?