Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




Postfix Documentation
Previous Page Home Next Page

Postfix DSN Support


Postfix version 2.3 introduces support for Delivery Status Notifications as described in RFC 3464. This gives senders control over successful and failed delivery notifications.

Specifically, DSN support gives an email sender the ability to specify:

  • What notifications are sent: success, failure, delay, or none. Normally, Postfix informs the sender only when mail delivery is delayed or when delivery fails.

  • What content is returned in case of failure: only the message headers, or the full message.

  • An envelope ID that is returned as part of delivery status notifications. This identifies the message submission transaction, and must not be confused with the message ID, which identifies the message content.

The implementation of DSN support involves extra parameters to the SMTP MAIL FROM and RCPT TO commands, as well as new Postfix sendmail command line options that provide a sub-set of the functions of the extra SMTP command parameters.

This document has information on the following topics:

Postfix Documentation
Previous Page Home Next Page