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As far as I can see, the settings you use are correct. It is a pity that Zabbix does not have an option to test the settings of the SMTP media type, that would make it a lot easier to check what goes wrong.

Can you telnet the Diafaan SMTP server from the Zabbix server (with the command: telnet IP_address_from_diafaan_server 25) and get a response from the Diafaan SMTP server? That will rule out that the Diafaan SMTP server is not set up correctly or that port 25 is blocked by a firewall.

Regards, Henk

No, that probably won't work. Unless the SMTP server of Diafaan SMS Server is exposed to the Internet but I would not recommend that for this application.

I have set up a quick Zabbix appliance to check how this program handles email and there are a couple of things you need to do in Zabbix to send email to a specific SMTP server.

The first thing is to add a new "Diafaan SMS" media type (select Administration-Media types-Create media type). Here you set the type to Email, the SMTP server to the host name or IP address where Diafaan SMS Server is installed and SMTP email to +43123456789@diafaan_server_ip_address.

Then you can add a new media to a user, select type "Diafaan SMS" and set the "Send to:" field to the proper email address that contains the GSM number, e.g.: +43123456789@sms.net.

You can add this user to the action of a trigger and if all is set up correctly, it will send an email straight to the SMTP server of Diafaan SMS Server with the right GSM number.

Regards, Henk

Hello Michael,

The SMTP server in Diafaan SMS Server expects emails that are sent to an email address with the format number@host.com or number@hostip. The domain part of the email address is ignored and the number part is the number of the mobile phone.

In Zabbix you can set the To Address of the email to, for example, +43650111111@diafaanhost (or p43650111111@diafaanhost, if there is a problem with the '+' character in the email address).

Regards, Henk

Hi Ryan,

In your alerting system you can specify an email host (the server were the mail is delivered). If you only want to use the alerting system to send SMS messages you can enter the IP number of the host running Diafaan SMS Server with port number 25 and all email will be sent to Diafaan SMS Server. Some alerting systems can specify multiple email servers, if that is the case you can use it to send both email and SMS messages through different email server.

If you want to use your alerting system to send both email and SMS messages it is more complicated, in that case you need to specify an email server that has the capacity to divert some email to an alternative SMTP server (Diafaan SMS Server). This only works well when you have full control over the email server and when it runs on your local network.

Diafaan SMS Server expects email with an email address like +1xxxxxxxxxx@host.com. The domain part (@host.com) is ignored, only the number part is used to send the message.

Regards, Henk