* Your installed path might differ. Under Solaris Unix, for example, sendmail is located in /usr/lib.
This is the Title of the Book, eMatter Edition
Copyright ?© 2007 O??™Reilly & Associates, Inc. All rights reserved.
42 | Chapter 2: Download, Build, and Install
Security
The sendmail program has always been a prime target of attack by crackers
(probably because it is distributed as fully commented source code). Although
sendmail has been secure since V8.11.6, one of your C-language libraries might
not be. If you have been notified of a security hole in your library, you should
consider recompiling sendmail, using a new, secure library. You can do this only
withth e open source. Recompiling is not an option withvendor-supplied
binaries.
Spam
If your site is beset by spam mailings (as most sites are these days), you should at
least be running V8.9.3 sendmail withth e access_db FEATURE support included
and utilized (?§7.5 on page 277). The V8.9 release of sendmail was the first that
specifically targeted the suppression of spam. If your site suffers from spam mailings,
consider upgrading to V8.14 soon.
Bug fixes
After widespread use and abuse, any program will begin to show its bugs. The
sendmail program, although superbly written, is no exception. One reason new
versions are periodically released is to fix reported bugs.
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