Which of the following is true regarding the command sendmail?
Which of the following is true regarding the command sendmail?
All common MTAs, including Postfix and Exim, provide a sendmail command. This allows for compatibility and ease of transition between various Mail Transfer Agents, ensuring that scripts and applications designed to work with the sendmail command can still function regardless of the specific MTA in use.
Since Sendmail was a very popular MTA for a long time, Postfix (and I assume Exim too, correct me if I'm wrong) wanted to maintain its compatibility with it, so they created an emulation layer that allows interaction with the Sendmail commands. It's akin to the 'newaliases' command!
the sendmail command can be used in sendmail, postfix and exim. Tested
E is correct "All MTAs intend to be drop-in Sendmail replacements, so all Sendmail-compatible applications should work regardless of what MTA is being used." source: LPIC-1 (102) (Version 5.0), page 341