Weddingbee boards

Our wedding ceremony location has a specific space limit of 120 ppl.  When we booked the site, we thought our wedding would be only about 100 people, so this was fine, however, out of the woodwork (i.e. my mother's and FMIL's address books) all this extended family has materialized that absolutely must be invited according to said parties.  Needless to say, this means that our guest list has ballooned beyond the 120 limit, so we are having to do reception only invites for some guests (I know this is an etiquette no-no, but its not that uncommon in the midwest and I've been invited to several weddings as a reception only guest).  My question is, do we send a save-the-date to the reception only invitees?  We are inviting all the OOT guests to both ceremony and reception since it seemed silly to ask them to come from far away for just one, so all the reception only invites are local folk.  Any insight?

I would say that the reception-only attendees also need to save their date, no? I would tailored my STD for the reception-only attendees (so without ceremnoy-related info if that info is in ur regular STD)....