Sentrion Overview Sentrion Platform Sentrion REAC Sentrion Mimecast Hard Appliances Virtual Appliances
Overview Policy Compliance Secure Content Filtering Cloud Partner Enterprise Community
Overview Download Security Support News Documentation Tips & Tricks DKIM FAQ Misc Milters
Overview Directory Synchronization Messaging Architecture Review High Volume Mail HIPAA Policy QUICKStart Implementation Performance Tuning Training Services Overview Message Routing and
Configuration
Message Policy
Management
Connection Control /
Attack Prevention
Directory Configuration
and Management
Overview Sendmail Partners Milter Community Industry Organizations System Integrators & Distributors
Overview Silver Support Gold Support Platinum Support Open Source Support Security Advisories Contact Support
Overview Customers Events Press Room Board & Investors Management Careers Contact Us
Overview Ask the Experts Security Chalk Talks Collateral Product Reviews & Awards IP Reputation Check Real-time Outbreak Monitor
Sendmail Inc.

HOME | CUSTOMER LOGIN
Follow Sendmail on Twitter
The Sendmail Blog
Sentrion Message Processors
Sentrion Application Store
Services
Partners
Support
Company
Resources
Open Source
 

Useful links

Table of Contents
home

Further Reading

Sendmail Installation And Operation Guide, ch. 5.12

App Spotlight

Enterprise Anti-spam

Using Userdb To Map Full Names

The user database was not originally intended for mapping full names to login names (e.g., Eric.Allman => eric), but some people are using it that way. (it is recommended that you set up aliases for this purpose instead -- since you can specify multiple alias files, this is fairly easy.) The intent was to locate the default maildrop at a site, but allow you to override this by sending to a specific host.

If you decide to set up the user database in this fashion, it is imperative that you not use FEATURE(`stickyhost') -- otherwise, e-mail sent to Full.Name@local.host.name will be rejected.

To build the internal form of the user database, use:

makemap btree /etc/mail/userdb < /etc/mail/userdb.txt

As a general rule, it is an extremely bad idea to using full names as e-mail addresses, since they are not in any sense unique. For example, the UNIX software-development community has at least two well-known Peter Deutsches, and at one time Bell Labs had two Stephen R. Bournes with offices along the same hallway. Which one will be forced to suffer the indignity of being Stephen_R_Bourne_2? The less famous of the two, or the one that was hired later?

Finger should handle full names (and be fuzzy). Mail should use handles, and not be fuzzy.

Back to Table Of Contents cf/README for Sendmail 8.12.11 Eric Allman of the Sendmail Consortium Rev: 1.1.1.1, Updated 2006/10/11 Back to Top


Site Map | Privacy Policy | Terms & Conditions | Copyright © 1998-2013 Sendmail, Inc. All Rights Reserved.