When you click on a members name in the Members list, it will have the
number in the address bar.
You can also see it by hovering over the Email button on each member's entry in the Directory. Or click there, but remember to discard the draft message if you don't want to send one.
/g/[groupname]/posttosub?dmsubid=2400
Shal
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Help:
/static/helpMore Help:
/g/GroupManagersForum/wikiEven More Help: Search button at the top of Messages list