some of the main.cf config
#Auth Stuff smtpd_sasl_auth_enable = yes #Dovecot #smtpd_sasl_path = private/auth #smtpd_sasl_type = dovecot
#Cyrus smtpd_sasl_type = cyrus smtpd_sasl_path = smtpd
#SASL Common broken_sasl_auth_clients = yes smtpd_sasl_security_options = noanonymous smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname
/usr/home/postfix/config/sasl points to the smtpd postfix lib
lrwxr-xr-x 1 root wheel - 31B Mar 27 2013 smtpd.conf -> /usr/local/lib/sasl2/smtpd.conf
example smtpd.conf file (needed for auth) :
# cat smtpd.conf #Local Password Database #pwcheck_method: saslauthd #mech_list: login plain #saslauthd_path: /var/run/saslauthd
#Postygres pwcheck_method: auxprop mech_list: PLAIN LOGIN auxprop_plugin: sql sql_engine: pgsql sql_hostnames: xxxxxxxx sql_database: xxxxxxx sql_user: xxxxxx sql_passwd: xxxxxxxxx sql_select: SELECT password FROM email_users WHERE username = '%u@%r' and password <> 'alias' and currentcount_bad < 30 and status = True
#Logging? log_level: 7
note select statement and db connection needs to match however to talk to your db?
Have A Happy Saturday !!!
Thanks - Paul Kudla (Manager SCOM.CA Internet Services Inc.)
Scom.ca Internet Services http://www.scom.ca 004-1009 Byron Street South Whitby, Ontario - Canada L1N 4S3
Toronto 416.642.7266 Main 1.866.411.7266 Fax 1.888.892.7266 Email paul@scom.ca
On 11/4/2023 7:32 PM, Michael Peddemors wrote:
Why use Dovecot/IMAP at all for the SMTP Authentication, can't you simply go direct to your database?
On 2023-11-03 09:55, Nick Lockheart wrote:
I have a Dovecot IMAP server and a Postfix server on separate machines. The user information is stored in a MariaDB database that is replicated on both servers.
Postfix needs to authenticate outgoing mail against our valid user database. I believe this requires us to install a "dummy" Dovecot on the Postfix server so that Dovecot SASL can provide authentication to Postfix from the database.
I think Cyrus had a standalone Cyrus-SASL package, but Dovecot doesn't?
If I wanted to setup a Dovecot instance on the Postfix server just for the purposes of SMTP authentication, and not use it to handle any mail, what is the minimum configuration required to make that work?
Is the dovecot-common package (Debian) enough? Or do I need the full dovecot-imap package?
What protocols go in the protocols directive? Can you just make it "protocols = auth" to disable IMAP connections?
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