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
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

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

  




 

 

Postfix Documentation
Previous Page Home Next Page

SMTP access rule testing

Postfix has several features that aid in SMTP access rule testing:

soft_bounce

This is a safety net that changes SMTP server REJECT actions into DEFER (try again later) actions. This keeps mail queued that would otherwise be returned to the sender. Specify " soft_bounce = yes" in the main.cf file to prevent the Postfix SMTP server from rejecting mail permanently, by changing all 5xx SMTP reply codes into 4xx.

warn_if_reject

This is a different safety net that changes SMTP server REJECT actions into warnings. Instead of rejecting a command, Postfix logs what it would reject. Specify " warn_if_reject" in an SMTP access restriction list, before the restriction that you want to test without actually rejecting mail.

XCLIENT

With this Postfix 2.1 feature, authorized SMTP clients can impersonate other systems, so that you can do realistic SMTP access rule tests. Examples of how to impersonate other systems for access rule testing are given at the end of the XCLIENT_README document.

Postfix Documentation
Previous Page Home Next Page