DESCR 466 B

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  1. This is a C program to do "bulk" mailing. For input, it takes a file
  2. of recipient addresses (one address per line) and a message (with
  3. headers already attached) to be sent to the recipients. It sorts the
  4. recipient list by reversed domain (so similar ones sort together),
  5. splits up the recipients into several groups containing no more than N
  6. domains each, creates an SMTP envelope for each group of recipients,
  7. and feeds that envelope to "/usr/sbin/sendmail -bs".