Explanation of notify_classes in Postfix
February 25, 2009 Postfix Configuration
The notify_classes allows you to send mail reports to the postmaster. This is additional information that is not usually reported because only the worst situations are typically reported. Here is a list of the notify_classes that you can use. The default for Postfix is to use resource and software.
bounce – This option will send copies of the headers that are bounced. It will also send the information about the SMTP session that led to the bounce.
2bounce – Any undeliverable mail will be sent to the postmaster by default.
delay – When mail is delayed it will send copies of the headers to the postmaster.
policy – If a client is rejected based on UCE policy (Unsolicitated Commercial Email) the transcript of the SMTP session is sent to postmaster.
protocol – If there are client server protocol errors the transcript of the SMTP session will be sent to postmaster.
resource – If Postfix cannot deliver mail because of resource problems send a message to the postmaster.
software – This option will notify postmaster if there are software problems that are associated with why mail cannot be delivered.
If you would like to get this information delivered to an email, you may want to add your email to the postmaster aliases so it comes to your email account and you do not have to dig for it.
postmaster: root,your_email
Run newaliases once you saved our changes.
This will allow you to receive that information to your email account. This is something that you can do on a temporary situation as you will surely get tired of receiving all this stuff….
Here is an example you can place in your main.cf.
notify_classes = bounce, delay, resource, software
