Redhat Sendmail 8.12.8-4Sendmail Sendmail 8.12.1Sendmail Sendmail 8.12.8Sgi Irix 6.5.19Redhat Sendmail 8.12.5-7Sendmail Sendmail 8.12.4Sendmail Sendmail 8.12.5Sendmail Sendmail 8.12.2Sendmail Sendmail 8.12.3Sgi Irix 6.5.20Sgi Irix 6.5.21Sendmail Sendmail 8.12.6Sendmail Sendmail 8.12.7Freebsd Freebsd 4.7Freebsd Freebsd 4.8Compaq Tru64 5.0aFreebsd Freebsd 5.0Openbsd Openbsd 3.2Compaq Tru64 5.1Freebsd Freebsd 4.6