I believe that there are two formats because one of them is generated by the automatic posting tool (when successful) and the other one is generated by an older tool used by the Secretariat for manual posting (when automatic posting fails for some reason). Brian On 04/02/2014 06:56, John Levine wrote: >> The CAPS do not bother me, nor does the switch between >> >> Content-Type: text/plain; charset="us-ascii" >> and >> Content-Type: multipart/mixed; boundary="NextPart" >> >> but that little old space does. And this is not new. >> >> Any ideas? > > Learn about regular expressions? > > Helpfully, > John > > PS: the state of the art in the regard seems to be procmail, an amazing > piece of work in daily use around the world, with source code essentially > unchanged in over 20 years. >