Postfix + SMTP-AUTH

I finally found a good blog post on the subject of getting Postfix to do SMTP-AUTH via SASL.

I went one step further, and instead of moving /var/run/saslauthd/ to the Postfix chroot, I did a bind mount:


/var/run/saslauthd /var/spool/postfix/var/run/saslauthd none bind 0     0

Postfix was announcing methods like CRAM-MD5 which can’t be supported by the PAM backend, so I restricted them down to PLAIN and LOGIN (over TLS only, obviously):


pwcheck_method: saslauthd
mech_list: plain login

Now, it’s working nicely, and I can IMAPS and SMTP-AUTH-TLS to my mail server from anywhere.


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You should check out the dovec

You should check out the dovecot sasl support in postfix. It allows you to talk directly to the dovecot authentication server.

You add this to

smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth

And this to dovecot.conf (inside auth default { } ):

socket listen {
client {
path = /var/spool/postfix/private/auth
mode = 0660
user = postfix
group = postfix

Restart and bob's your uncle. Much better than cyrus imho.

Yes, Izak, I totally agree, ho

Yes, Izak, I totally agree, however Dovecot SASL support isn't in sarge.

When etch rolls around... :-)

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