Error in Zabbix email configuration

Dear Experts, I configured Zabbix to send alert email when there is a problem but got this error. Could you please suggest?

This is my setting, username/pass is correct:
DP230Network AdministratorAsked:
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Joy DingenenICT system consultantCommented:
Are you sure you are using the correct Connection Security with the correct port number?
Quite common to use SSL/TLS.

that's the only thing i can think of.
Peter SchultzSenior Network AdministratorCommented:
Check for missing ssl lib on that server. Is ZABBIX installed via package ? Please more details about machine
DP230Network AdministratorAuthor Commented:
Hi, no I installed the Zabbix as an appliance, that is an VM running on Vsphere 4.1
SolarWinds® Network Configuration Manager (NCM)

SolarWinds® Network Configuration Manager brings structure and peace of mind to configuration management. Bulk config deployment, automatic backups, change detection, vulnerability assessments, and config change templates reduce the time needed for repetitive tasks.

Peter SchultzSenior Network AdministratorCommented:
please test from the zabbbix Appliance following:
telnet <SMTP Server> 587
enter "ehlo <SMTP Server helo>"

Open in new window

Please share the respond in terminal.
DP230Network AdministratorAuthor Commented:
Hi, please see the result below

Peter SchultzSenior Network AdministratorCommented:
hmm, if Username and Password are correct this shows that it should work. Please check /var/log/syslog for error messages around the time you tested this. Please post results (check for cleartext security relevant data first - like passwords - and replace them).

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Joy DingenenICT system consultantCommented:
good troubleshoot, no reply from initiator
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