| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| sendmail, 4th Edition | 978-0-596-51029-9 (0-596-51029-2) | 2007 | Bryan Costales · Claus Assmann · George Jansen |
| sendmail 8.13 Companion | 978-0-596-00845-1 (0-596-00845-7) | 2004 | Bryan Costales · George Jansen · Claus Assmann |
Gregor Schaefer · Gregor Spohr · Gregory Neil Shapiro · Gregory Piatetsky-Shapiro · Gregory Spira