I hardly ever call my T but I email her at least once in between sessions, (I see her weekly) usually 2 or 3 times. The rule is that she doesn't email me back, but I can email her as much as I want to. I like that! Probably we'd have to discuss it if I emailed every day or more often than I do, but so far she's okay with it. She only has to read them, not reply so I don't feel guilty.