Can someone please provide an example on how to add a
header to all outgoing emails using postfix.
I would like to know what file(s) to create or edit and what I should put in them. And also what to do to make postfix read in the new configuration.
I have read quite a bit of documentation but it seems to expect a high level of familiarity with postfix. All I have gathered so far is that it may have something to do with
/etc/postfix/main.cf and somehow add a PREPEND statement.
Note that mucking about with postfix (and email in general) is way out of my comfort zone.