mutt: No authenticators available

I am trying to access my pop3 account with mutt. It works in claws-mail, but won't work in mutt.

The email provider gives me two ports, one for pop3 and the other for imap. I want pop3.

If I use the port for imap (which I don't want), mutt says
Connection to mail.provider.com closed
Error connecting to server: mail.provider.com

If I use the port for pop3 (which I want), mutt says
Connection to mail.provider.com closed

If I use no ports, mutt says
No authenticators available

I have this spray and pray in my config file:

set pop_authenticators="plain:login:user:apop:digest-md5:gssapi:cram-md5"
set smtp_authenticators="plain:login:user:apop:digest-md5:gssapi:cram-md5"
set imap_authenticators="plain:login:user:apop:digest-md5:gssapi:cram-md5"

I've tried every option individually in pop_authenticators and all of them fail.

Is there a fix for this?