is Sendmail, Inc.'s chief technology officer and co-founder. Allman authored sendmail, the world's first Internet Mail program, in 1981 while at the University of California at Berkeley. He continues to spearhead sendmail.org, the global team of volunteers that maintain and support the sendmail open source platform.
is CTO with SL3D, Inc. in Boulder, Colorado. He has been active in system administration for over fifteen years and has been writing articles and books about computer software for over twenty years. His most notable books are C from A to Z (Prentice Hall), Unix Communications (Howard Sams), and, of course, sendmail (O'Reilly & Associates).