Chapter 5: sendmail administration
Table of contents
Chapter 5: sendmail administration
How sendmail works
Outgoing mail
Incoming mail
sendmail execution
sendmail interfaces
Mail to files and programs
Standard sendmail configuration
Running mkdev cf
Editing the daemon invocation
Running and testing sendmail
Tuning sendmail configuration
Changing the queue processing interval
Creating a user information database
Altering read timeouts
Altering message timeouts
Forking during queue runs
Altering queue priorities
Setting the mail load limit
Setting the delivery mode
Log Levels
Changing file permissions
Turning off security checks
Setting connection caching parameters
Using sendmail with a name server
Moving the per-user forward files
Setting mail queue filesystem free space
Setting maximum message size
Setting privacy flags
Setting ``send to me too'' operation
Reconfiguring sendmail
Administering sendmail
Debugging sendmail
Changing the values of options
Trying a Different Configuration File
Logging traffic
Testing configuration files
Persistent host status information
Viewing the system log
Log entry format
Levels
Dumping state
Viewing the mail queue
Disk-based connection information
The service switch
Maintaining the alias database
Managing spam
Enabling user forwarding (.forward files)
Special header lines
IDENT protocol support
Summary of support files
Advanced sendmail configuration
/usr/lib/sendmail.cf overview
Configuration file lines
Building a configuration file from scratch
For more about sendmail