Hi!

I'm trying to relay mail thru a host running qmail which requires SMTP
AUTH to enable relaying the mail. In /etc/postfix/main.cf, I've added:

relayhost = smtpauth.host
smtp_sasl_auth_enable = yes
smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd

According to http://www.thecabal.org/~devin/postfix/smtp-auth.txt that's
all I need to do, correct?

This seems to work almost good, however, when I try to send a mail, I
get the following error message in syslog:

Mar 9 11:03:38 teich postfix/smtp[3510]: C71E914BCD7D: to=<askwarsomeplace>, relay=smtpauth.host[ip], delay=1, status=deferred (Authentication failed: cannot SASL authenticate to server smthpauth.host[ip]: no mechanism available)

Hm, why does it say "no mechanism available"?

The host advertises as follows:

250-AUTH LOGIN PLAIN
250-AUTH=LOGIN PLAIN

This means, that only LOGIN and PLAIN are supported on the receiving
end. On my machine, I've got:

> ll /usr/lib/sasl/
insgesamt 20
lrwxr-xr-x 1 root root 17 Mär 9 11:02 liblogin.so -> liblogin.so.0.0.6*
lrwxr-xr-x 1 root root 17 Mär 9 11:02 liblogin.so.0 -> liblogin.so.0.0.6*
-rwxr-xr-x 1 root root 7792 Mär 5 00:52 liblogin.so.0.0.6*
lrwxr-xr-x 1 root root 18 Mär 9 11:02 libplain.so -> libplain.so.1.0.15*
lrwxr-xr-x 1 root root 18 Mär 9 11:02 libplain.so.1 -> libplain.so.1.0.15*
-rwxr-xr-x 1 root root 7348 Mär 5 00:52 libplain.so.1.0.15*
-rw-r--r-- 1 root root 19 Feb 22 23:48 smtpd.conf

Those files are from sasl 1.5.27.

Futher, I wonder what this error message means:

Mar 9 10:54:49 teich postfix/smtp[2614]: warning: smtpauth.host[ip] offered AUTH option multiple times

Is this, because the host advertised two AUTH lines? If so, how can I
disable this warning?

Alexander Skwar

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