The git_multimail.py file is a post commit hook for sending 
email notification upon pushes to a Git repository. For 
more information see the following:

  https://github.com/git-multimail/git-multimail

I cloned the git repo and made custom changes to the script.
In order for the script to perform properly, the following 
configuration settings should be set in the repo directory:

  cd /space/freesurfer/repo/freesurfer
  git config multimailhook.administrator "zkaufman@nmr.mgh.harvard.edu"
  git config multimailhook.mailingList "zkaufman@nmr.mgh.harvard.edu, mreuter@nmr.mgh.harvard.edu, paul@corticometrics.com, nicks@nmr.mgh.harvard.edu"
  git config multimailhook.emailPrefix "[GIT commit] "

Additional setting are listed on this page:

  https://github.com/git-multimail/git-multimail/blob/master/git-multimail/README

-ZJK 2015_09_09