On http://www.postfix.org/SASL_README.html it says:
To find out what SASL implementations are compiled into Postfix, use the following commands: % postconf -a (SASL support in the SMTP server) % postconf -A (SASL support in the SMTP+LMTP client) On our RHEL 8 server, postfix 3.5.8-1, dovecot 2.3.8-9, the responses are: % postconf -a cyrus dovecot % postconf -A cyrus Checking installed packages, we find cyrus-sasl cyrus-sasl-gssapi cyrus-sasl-lib cyrus-sasl-plain all 2.1.27-5 Does this mean that smtpd_sasl_type should be "cyrus" if we want to use LMTP ? Does this also mean that the rest of the Dovecot SASL setup described on the page is worthless ? Thanks.