Graylog mailutils installation

Deal all,
Should I install the mailutils on graylog server ?
Because i follow the guideline of mail configuration of official document of graylog and set the mail configuration already ,
Unfortunately , i can not transfer the mail successfully.

Are there any errors in the graylog-server log file?

What is your mail configuration?

Hi Ponet

Here is my mail configuration as below

#Email transport
transport_email_enabled = true
transport_email_hostname = my mail server ip
transport_email_port = 25
#transport_email_use_auth = false
#transport_email_auth_username =
#transport_email_auth_password = secret
transport_email_subject_prefix = [graylog]
transport_email_from_email =
transport_email_use_tls = true
#transport_email_use_ssl = false

Check if your mail server doesn’t use self-sign certificate, which graylog don’t like.

openssl s_client -starttls smtp -showcerts -connect mail_server_ip:25 -servername mail_server_ip

You should use proper certificate on you smtp server or add your self-sign certificate to graylog trusted ca file.

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