Postfix-sasl on FreeBSD will not authenticate

[Per olof Ljungmark]

On 07/03/18 22:39, James B. Byrne via freebsd-questions wrote:
> On server A we have cyrus-imapd running with spiped listening on
> TCP:143.  On server B we have postfix-sasl-3.3.0 running with spiped
> listening on TCP:143 linked to server A.
> 
> On server A saslauthd is configured in rc.conf to use rimap to the
> localhost:
> 
> saslauthd_flags="-a rimap \
>                  -O localhost"    # Use Remote IMAP to authenticat
> 
> Postfix is configured to use saslauth to authenticate outgoing senders:
> 
> smtpd_sasl_auth_enable = yes
> smtpd_sasl_authenticated_header = no
> smtpd_sasl_exceptions_networks =
> smtpd_sasl_local_domain =
> smtpd_sasl_path = smtpd
> smtpd_sasl_security_options = noanonymous
> smtpd_sasl_service = smtp
> smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
> smtpd_sasl_type = cyrus
> 
> 
> But I cannot find any such file named smtpd.conf which, according to
> the Postfix documentation, should exist and should contain:
> 
> pwcheck_method: saslauthd
> mech_list: PLAIN
> 
> It appears to me that postfix is directly looking in
> /usr/local/etc/sasldb2.db itself and, finding no entries, failing to
> authenticate.  How do I tell postfix to use the saslauthd daemon
> instead?
> 

You must create the file yourself and adjust it to whatever mech you
use, in our case it is saslauthd:

cat /usr/local/lib/sasl2/smtpd.conf
pwcheck_method: saslauthd
mech_list: plain login