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(:noteblock:) Testing your Authentication Config (:notecontent:) This section was inspired from the very complete book Postfix: the Definitive Guide from O'Reilly. Highly reommended! (:noteblockend:)

(:noteblock:) Testing your Authentication Config (:notecontent:) This section was inspired from the very complete book Postfix: the Definitive Guide from O'Reilly. Highly reommended! (:noteblockend:)

(:noteblock:) Testing your Authentication Config (:notecontent:) This section was inspired from the very complete book Postfix: the Definitive Guide from O'Reilly. Highly reommended! (:noteblockend:)

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< MboxMaildirMigration | EmailServer

This page is part of the EmailServer article.

Troubleshooting SASL authentication

Troubleshooting SASL authentication

(:noteblock:) Testing your Authentication Config (:notecontent:) The script in this section was lifted from the very complete book Postfix: the Definitive Guide from O'Reilly. (:noteblockend:) To ensure that your authentication process works fine, we'll check what the server reports when we try to feed it a correct login.

Since logins are base64 encoded, copy and paste the following in a file that you call encode_sasl_plain.pl (don't forget to chmod 755 to make it executable): (:source lang=Perl:)

1. !/usr/bin/perl

use strict; use MIME::Base64; if ( $#ARGV != 1 ) {

   die "Usage: encode_sasl_plain.pl <username> <password>\n";

} print encode_base64("$ARGV[0]\0$ARGV[0]\0$ARGV[1]"); exit 0; (:sourcend:)

Then use it to encode a username/password pair as it would be expected by the mail server for authentication. Here I use the existing administrator user (the account must exist on the system):

(:source:)

1. encode_sasl_plain.pl administrator 123456

YWRtaW5pc3RyYXRvcgBhZG1pbmlzdHJhdG9yADEyMzQ1Ng== (:sourcend:)

Then, talk to your mail server manually: (:source linenum:)

1. telnet localhost 25

Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. 220 mail.example.com ESMTP MyOwnPostOffice EHLO test.faraway.com 250-mail.example.com 250-PIPELINING 250-SIZE 20971520 250-VRFY 250-ETRN 250-AUTH LOGIN DIGEST-MD5 PLAIN CRAM-MD5 250-AUTH=LOGIN DIGEST-MD5 PLAIN CRAM-MD5 250 8BITMIME AUTH PLAIN YWRtaW5pc3RyYXRvcgBhZG1pbmlzdHJhdG9yADEyMzQ1Ng== 235 Authentication successful quit 221 Bye Connection closed by foreign host. (:sourcend:) The only lines you will need to type are 6, 15, 17. The others are the server's responses. This page is part of the EmailServer article.

SpamAssassin

...ToDo...

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