Re: Postfix and SASL

[Matt Krause <me@mattkrause.net>]

I figured it out.  The /etc/init.d/saslauthd script had a typo in it.  I 
specified PARAMS="-m /var/spool/postfix/var/run/saslauthd" at the top 
and down below it read

# Add our mechanimsms with the necessary flag
PARAMS="${pARAMS} -a ${MECHANISMS}"

All that grief from a little lowercase p.  I don't remember changing the 
  file down there either. Sure not sure why it didn't work when I tried 
to start up saslauthd from the command line with -m 
/var/spool/postfix/var/run/saslauthd.   It was probably a permissions 
issue.

Anyway, this website helped me out quite a bit in the process.

http://www.fatofthelan.com/articles/articles.php?pid=22


Derrick 'dman' Hudson wrote:

> On Wed, Apr 28, 2004 at 08:33:02AM -0700, Matt Krause wrote:
> | I am trying to get SASL working with Postfix so I can authenticate SMTP 
> | users.  Having some problems.  The testsaslauthd app runs fine and 
> | returns a success, but when I telnet and try to authenticate as below, 
> | it fails. Any ideas?  Thanks.
> [...]
>
> | mkrauselin# cat /etc/postfix/sasl/smtpd.conf
> | saslauthd_path:/var/run/saslauthd/mux
> [...]
>
> | mkrauselin# ps -axf
> | /usr/sbin/saslauthd -m /var/run/saslauthd -a pam
> [...]
>
> | /var/log/mail.log reads
> | 
> | Apr 28 08:29:58 MKRAUSELIN postfix/smtpd[9935]: warning: SASL 
> | authentication failure: cannot connect to saslauthd server: No such file 
> | or directory
>
> The postfix smtpd binary (with libsasl linked in) can't find the named
> pipe through which it asks saslauthd if the credentials are valid.
>
> Basically smtpd is chrooted, so the '/' in
> saslauthd_path:/var/run/saslauthd/mux really means /var/spool/postfix.
>
> You have two solutions, depending on what you want :
>
> Solution A :
>     Change the line
>         smtp      inet  n       -       -       -       -       smtpd
>     to
>         smtp      inet  n       -       n       -       -       smtpd
>     in /etc/postfix/master.cf.  (don't run smtpd chrooted)
>
> Solution B :
>     Add the lines
>         # put the pipe in postfix' chroot directory
>         PARAMS="-O /etc/saslauthd.conf -m /var/spool/postfix/var/run/saslauthd"
>     to /etc/default/saslauthd.
>     (you might also need to create that directory)
>
> -D