Unable to send mail

hello
i get this message in the nagios log:

nagiosadmin;localhost;HTTP;WARNING;notify-service-by-email;HTTP WARNING: HTTP/1.1 403 Forbidden

how van i correct this error?
Thanks in advance

hi,
I think you made some thing wrong in your commands file or your object file. I can help you if you post the related lines here.
Cheers,
512

The log extract you have posted does not indicate an error with the sending of a notification email, but rather simply a log entry that the notification has been attempted and the detail of the service that is failing. The details you have given signify roughly as follows…

The contact name for use in notifications = nagiosadmin;
The server with the issue = localhost;
The service with the issue = HTTP;
The status of the issue = WARNING;
The notification command response by nagios = notify-service-by-email;
The issue summary/detail (for the email) = HTTP WARNING: HTTP/1.1 403 Forbidden