Many people need to be thanked for their assistance in developing
and debugging mailfromd. After S. C. Johnson, I can say
that this program “owes much to a most stimulating collection of
users, who have goaded me beyond my inclination, and frequently beyond
my ability in their endless search for "one more feature". Their
irritating unwillingness to learn how to do things my way has usually
led to my doing things their way; most of the time, they have been right.”
A real test for a program like mailfromd cannot be done
but in conditions of production environment. A decision to try it
in these conditions is by no means an easy one, it requires courage
and good faith in the intentions and abilities of the author. To
begin with, I would like to thank my contributors for these virtues.
Jan Rafaj has intrepidly been using mailfromd since its
early releases and invested lots of efforts in improving the program
and its documentation. He is the author of many of the MFL
library functions, shipped with the package. Some of his ideas are
still waiting in my implementation queue, while new ones are
consistently arriving.
Peter Markeloff patiently tested every mailfromd
release and helped discover and fix many bugs.
Zeus Panchenko contributed many ideas and gave lots of helpful
comments. He offered invaluable help in debugging and testing
mailfromd on FreeBSD platform.
Sergey Afonin proposed many improvements and new ideas. He also invested a lot of his time in finding bugs and testing bugfixes.
John McEleney and Ben McKeegan contributed the token bucket filter implementation (see TBF).
Con Tassios helped to find and fix various bugs and contributed the
new implementation of the greylist function (see greylisting types).
The following people (in alphabetical order) provided bug reports and helpful comments for various versions of the program: Alan Dobkin, Brent Spencer, Jeff Ballard, Nacho González López, Phil Miller, Simon Christian, Thomas Lynch.