Nagios Log Server not sending alert Emails

[muratKURU]

Can you tell me where I can find the SMTP settings on CentOS?
Below you can see the Mail Settings on the GUI

[scottwilkerson]

Out of curiosity, could the sending problem you were having be related to the DNS issue here
http://support.nagios.com/forum/viewtop ... 90#p128345

Any instance can be the sender of the email message, so all would need to ne able to resolve the DNS properly.

[muratKURU]

No it's not.
Even after having corrected the DNS, we are still not able send Alarms via E-Mail.
Same error as reported.

[ssax]

Did you verify that you've added the host to the allowed relay list on your mail server?

[jolson]

The solution here is very likely the following:

Edit /var/www/html/nagioslogserver/system/libraries/Email.php and change (around line 48):

Code: Select all

    var $newline      = "\n";
    var $crlf         = "\n";

To:

Code: Select all

    var $newline      = "\r\n";
    var $crlf         = "\r\n";

[lgroschen]

Jesse is likely right, some mail servers wont accept anything not RFC-compliant.

This bug has been fixed:
http://api.nagios.com/tps/viewtask.php?task_id=5651