Corrected, not intention to make a "tone", just pointing out that information is intentionally omitted.
> Its perfectly possible to get IMAP to work with TOTP
Yes, but that's not available in generally available email clients. There are OTP extensions to IMAP.
> I don't trust webmail at all because I don't audit the JavaScript
This. We are working on one that uses no JS or just conditinaly for enhancements.
> Then again, I also don't trust e-mail authenticity because the protocol is broken by design, and nobody has come up with a suitable alternative.
Glad I am not the only one thinking that =)
> A lot of people are using a weak password as first factor, btw. Do you protect against such?
No, we set a minimum 6 char password. However we think it is less secure to have a complex one you canot remember than one of average strength.