xymon mail service

You need just regular sendmail working on the host.
If You can send e-mail from OS with mail or mails - then it should work for XyMon too (sometimes You may also need to adjust sendmail configuration for masquarading, SMTP gateway etc).
Contact Your system administrator or check web for "how to setup sendmail on linux or unix".


Best regards,

Andrey Chervonets
SIA CoMinder
http://www.cominder.eu/