Email Handling and Manipulation Question 15

[Dan Kelly]

In an UNIX environment that makes use of a local sendmail
installation, how would you
ensure that your script will be able to arbitrarily set the sender’s
name and address in an email?
(Choose 3)

A. By adding a From header to the message
B. By passing -f as one of the extra parameters
C. By adding a Reply-to header to the message
D. By ensuring that the user under which Apache runs is marked as
privileged in the
sendmail configuration
E. By ensuring the Apache process runs as root

[Seal Trip]

A. By adding a From header to the message
B. By passing -f as one of the extra parameters

D. By ensuring that the user under which Apache runs is marked as privileged in the sendmail configuration

[Dan Kelly]

Adding a From header is not sufficient to ensure that sendmail won’t
rewrite your sender
address when sending the message. In fact, you have to specify the
envelope sender of the email
using the -f extra parameter to sendmail. These two steps, on their
own, are not
necessarily sufficient, however; you also have to ensure that the user
under which Apache
runs has the privilege of changing the envelope From header.
Therefore, the correct answers
are A, B and D.