September 2004
Intermediate to advanced
192 pages
10h 12m
English
When the administrator is not careful, the misuse or misconfiguration of sendmail can lead to an insecure and possibly compromised system.
A Milter no longer removes its socket when the Milter is run by root; see Section 7.1.2.10 [V8.13].
As of V8.13, AUTH information is no longer included in bounced email
when sendmail is configure to use SMTP AUTH
(10.9[3ed]). This change was made to avoid
the risk of leaking sensitive information.