The ‘Sendmail’ Archives
Posted February 9, 2004 by

Send Mail Via Telnet /Test for Open Relay

Behind the scenes, the commands sent to mail servers are simple text commands. These commands can be sent to an email server manually via Telnet. This is a quick way to test an email server to determine if it is an open relay.

Category Sendmail

Posted January 13, 2004 by

Sendmail: Process the Queue Manually When the Load Average is High

This command can be useful when the load average is high (not due to sendmail), and you want to flush all the mail off the system.

Category Sendmail

Posted January 13, 2004 by

Sendmail: Check Version, Compile Flags, System Identity

These options to sendmail will give you some useful version and configuration information.

Category Sendmail

Posted January 13, 2004 by

Sendmail: Process Mail from User

This command is useful for processing messages from a certain user (runs through the queue):

Category Sendmail

Posted January 13, 2004 by

Sendmail: Command Line Alias Expansion

An alias allows sendmail to redirect mail to a specific address. The following commands shows how to expand this alias and expose the redirection.

Category Sendmail

Posted December 1, 2003 by

Sendmail debugging: watch queue processing

In the course of troubleshooting sendmail problems, it is sometimes helpful to watch sendmail do its thing. If there is a backlog of messages in the queue, you can run sendmail manually with a verbose option to make it act as a queue runner and see what it is doing and possibly why it is […]

Category Sendmail