Locals Only

Posted by alex almazan Fri, 02 May 2008 20:46:00 GMT

Sendmail default installations are established solely on localhost, please ensure that initial ‘.mc’ edits should include changes to the following line in the file ‘/etc/mail/sendmail.mc’

From this: 

DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
To this: 

DAEMON_OPTIONS(`Port=smtp,Name=MTA')dnl
Considerations for SMTP authentication should also be put forth in the initial edits. Remove each ‘dnl’ from the front of the lines in the file ‘/etc/mail/sendmail.mc’ that impact these listed configuration options: 
TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN'')dnl
define(`confAUTH_MECHANISMS'', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN 
PLAIN'')dnl

Once your edits are in place, regenerate the configuration

[root@station mail]# service sendmail restart
Shutting down sm-client:                                   [  OK  ]
Shutting down sendmail:                                    [  OK  ]
Starting sendmail:                                         [  OK  ]
Starting sm-client:                                        [  OK  ]
[root@station mail]# telnet 192.168.0.1 25
Trying 192.168.0.1...
Connected to station.example.com (192.168.0.1).
Escape character is '220 station.example.com ESMTP Sendmail 8.13.8/8.13.8; Thu, 9 Aug 2008
10:36:18 -0500
quit
221 2.0.0 station.example.com closing connection

Connection closed by foreign host.