Yeah, I think if you have photos and phone records, those would hold more weight than email inboxes. You only need a few photos, and if you're providing phone records only a couple; there's no set number, I just submitted a couple of mine since all my calls were done on my mobile and they sent me my phone records along with my bill every month. I just went through and highlighted my husband's number, and included a few photos, and a couple screenshots of my inbox.
When you're married, it's slightly different from other visas like fiance or unmarried partner since you have the marriage certificate to prove you've done the deed--and like historyenne said, as long as there isn't some huge amount of time that you've been apart without communication, you'll be fine.