An error occurred while trying to send an email!

please support as i can’t send any test mails

The Graylog server encountered an error while trying to send an email. This is the detailed error message: org.apache.commons.mail.EmailException: Sending the email to the following server failed : (javax.mail.MessagingException: Could not connect to SMTP host:, port: 25; nested exception is: Unrecognized SSL message, plaintext connection?)




@mbahaa the main parts of the error message is:

Could not connect to SMTP host:, port: 25;


Unrecognized SSL message, plaintext connection?

you should check with your mail server responsible if and what kind of transport security (ssl, tls) is needed to connect to your Mailserver.

Thanks dear. Issue resolved after restarting postfix service

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