Now that we have trace and levels and stuff we should go through the codebase and add trace where users are likely to run into trouble.
E.g. it seems send (imap send?) doesn't have any logging which made it hard to help out on IRC.
- add trace to all command Execute calls (with flags?)
- add trace(?) to all instances of PushStatus?
- debug for all configuration options of send? i.e. debug where account specific configurations are used?