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

Preparing Postfix for LDAP or SQL lookups

LDAP and SQL are complex systems. Trying to set up both Postfix and LDAP or SQL at the same time is definitely not a good idea. You can save yourself a lot of time by implementing Postfix first with local files such as Berkeley DB. Local files have few surprises, and are easy to debug with the postmap(1) command:

% postmap -q [email protected] hash:/etc/postfix/virtual 

Once you have local files working properly you can follow the instructions in ldap_table(5), mysql_table(5) or pgsql_table(5) and replace local file lookups with LDAP or SQL lookups. When you do this, you should use the postmap(1) command again, to verify that database lookups still produce the exact same results as local file lookup:

% postmap -q [email protected] 
ldap:/etc/postfix/virtual.cf 

Be sure to exercise all the partial address or parent domain queries that are documented under "table search order" in the relevant manual page: access(5), canonical(5), virtual(5), transport(5), or under the relevant configuration parameter: mynetworks, relay_domains, parent_domain_matches_subdomains.

Postfix Documentation
Previous Page Home Next Page