What is the best way to implement a Courier autoresponder to send text from
The same way as implementing an autoresponder with any other mail server.
You can invoke it from a .courier file. If you feel brave, you can set up
an alias that directly feeds the autoresponder (which will then run as the
You can certainly take advantage of the preinitialized environment variables
in order to automate the response, and take advantage of some bundled
utilities. reformail will generate the autoresponse header, then just
append your text to it, and run sendmail to mail out the result.