Hi,

Are there anybody who could make WP8 (and W10 desktop clients it seems) devices working with Dovecot's POP3 server?

The conversation looks like this: S +OK ready C CAPA S +OK S CAPA S TOP S UIDL S RESP-CODES S PIPELINING S AUTH-RESP-CODE S USER S SASL PLAIN S . C AUTH S +OK S PLAIN S . C AUTH PLAIN S + C <base64 auth string) S +OK[space] C USER username S -ERR unimplemented

First I thought the extra space after that OK causes this, but removing it changed nothing.

So these devices try to log in with AUTH PLAIN, then even after a successful login they want to log in again with USER, which gets rejected.

The only solution here seems to be giving back -ERR to the client's AUTH command, which makes it try USER instead. I'm not aware of any configuration options which makes this possible.

Any other ideas?

Thanks,