mime=no
Don't use MIME, no HTML mail allowed.
testing=yes
Run in testing mode (suppress randonmess)
saveall=yes
Save all attachments to files.
temp=/path/to/working/dir/
Defaults to /tmp.
url=http://box/path/
URL-prefix for printing paths to attachments
header=text...
Text preceding the attachment URL list.
textsig=/path/to/file
Text signature to append to text parts.
htmlsig=/path/to/file
HTML signature to append to HTML parts.
If "saveall" is yes, then the script will save all attachments to disk so people can access their
contents later. If an URL is specified then that automatically implies "saveall=yes". Without this, the
default behavior is to only save text and html parts, and delete them and all working directories when
the script is finished.