My T does allow email so I hope it's still okay to reply to this thread and offer my perspective. I think email causes as many problems as it solves. On the one hand, it's good for an instant fix that makes you feel connected to your T, and it's good for communicating things you can't say. But once email is out there, it's out there. You can't take it back. Sometimes I've emailed things and then changed my mind about what I've said.

I think a lot of Ts are quite reasonably concerned with how much email they might get, whether they can keep up with it, etc. My T has always been very clear that he may not read emails before the session, and he may not reply - and if he does, it's never at length. It can be agony wondering if he's read something, what he thinks about it etc.

My T says he sometimes feels like he's behind on things with me if he hasn't had time to read my emails. And the thing is, sometimes I'll email something and then totally change my mind about it, so I feel like I've wasted his time with it. And tone of voice really can get misconstrued very badly.

I do a job that involves getting high volumes of email and it can get really exhausting trying to keep up with it so I can see why a T might want to restrict it. And it's better to have a blanket rule than saying you can email up to a certain amount - because then you have to agonise over whether to use the full allowance or save some or whatever.