On Tue, Nov 22, 2022 at 07:36:59PM +0000, Chris Green wrote:
> I have postfix installed on all of my systems and mostly they have at
> least mailx as well which is handy for sending tests. However one
> system doesn't even have mailx, do Ihave to install it to be able to
> send tests or is there some way to send test messages from the command
> line with just the basic postfix installation?
If you don't need any friendly helpful program to prepare an RFC5322
message header + body, then you can send messages with the sendmail(1)
program that comes with Postfix.
/usr/sbin/sendmail -f "$sender" -it < /some/msg
The message can have the recipients listed in either:
To:
Cc:
Bcc:
Or else (if any of the Resent-* headers, including Resent-From are
present):
Resent-To:
Resent-Cc:
Resent-Bcc:
You can also or instead list the recipients on the command-line:
set -- "$rcpt1" "$rcpt2" ...
/usr/sbin/sendmail -f "$sender" -i [-t] -- "$@" < /some/msg
or with Bash and the like use an array variable:
rcpts=( "$rcpt1" "$rcpt2" ... )
/usr/sbin/sendmail -f "$sender" -i [-t] -- "${rcpts[@]}" < /some/msg
The purpose of mail(1), mailx(1), ..., mutt, pine, elm, ... is to
provide a user-friendly front-end, that possibly also supports filing
copies into an IMAP "Sent" folder, prompts for the subjects, supports
MIME attachments, ...
--
Viktor.
