[Dovecot] LDAP auth_bind=yes in rc21 = goodness

Hi all,

I finally got a chance to try out the fix for the LDAP auth_bind=yes issues in production (using rc21). It seems to be working just fine even after 24 hours of severe abuse.

Incidentally, I had switched to bsdauth+login_ldap (on OpenBSD) which was often OK, but occasionally I would see Postfix smtpd throttled with SASL errors due to "connection refused" on the Dovecot authentication socket. This may just have been due to increased LDAP server load (Dovecot's internal LDAP generates much less).

Thanks Timo! (And thanks Brad for updating the port)

Adrian.