Outlook 2010 Auto Accept Meeting Invites as Tentative

File, Options, Calendar... All the way down at the bottom is "resource scheduling". You can set how it responds to meeting requests there.

tools, options, prefrences, calendar options..

Enable calendar atendant in OWA (2010: Options->Settings->Calendar->Automatic Processing).
If not available, you must create a rule with "run a script" action, after you add with Alt-F11 following VBScript in context ThisOutlookSession:

Sub AutoAcceptMeetings(oRequest As MeetingItem)
If oRequest.MessageClass <> "IPM.Schedule.Meeting.Request" Then
Exit Sub
Dim oAppt As AppointmentItem
Set oAppt = oRequest.GetAssociatedAppointment(True)
Dim oResponse
Set oResponse = oAppt.Respond(olMeetingAccepted, True)
oResponse.Display
End Sub

Thank you BillBondo and TBone for your answers, I had found those options, but there isn't a choice that I'm seeing to enable automatic processing and have the meetings marked as tentative. When I enable those options, it simply accepts the request if there is no conflicting appointment on my calendar. I am about to check OWA.

I checked OWA but our exchange server is 2003, not 2010. Reading the above VB I don't see where it's accepting the meeting as tentative. Is there any alternative to that?

I was thinking auto-accept. Yes, what yobri says is true. Outlook will mark a meeting as tentative on the invitee's calendar until they respond to the invitation.

Sorry for the delayed response. No, I do not need to have a status sent to the originator. I am now curious as to how it shows on my Droid. Really, I want to see the tentative meetings on both Outlook and my Droid so that I can see who's trying to fill up my schedule and rank the importance of the events so that I can respond properly.