Duplicate instances of same email address with different ID#s
While trying to locate the ID#s for all 15 different email accounts managed by my TB desktop app, I discovered that there are two instances of a gmail account, but with different ID#s (although only one appears in my home screen). I've found no way of determining which one is valid, and I can't risk losing my main gmail account if I try to delete one and choose the wrong one. Does anyone have any ideas I might try, to determine which one is the "extra" and how this happened? I've tried looking at the source code for emails in that account, but can't find any ID# referenced there.