Admin Getting Duplicate emails

Hi, I am admin of 654714.  I sent an email to the aliases (president-654714@toastmastersclubs.org, vpe-654714@toastmastersclubs.org, vpm-654714@toastmastersclubs.org, treasurer-654714@toastmastersclubs.org, ipp-654714@toastmastersclubs.org, admin-654714@toastmastersclubs.org)

and ended up getting duplicate emails (5 duplicates to be exact).  It looks like emails sent to the aliases are getting routed to admin for some reason and I don't think it should.  I'm not sure if this is by design or a setting I enabled somewhere.  I don't think this was always the case so maybe something got changed.