i run graylog in docker-compose:
I did setup following environment variables:
graylog itself works. Only the alert-mail does not work. If i add an email recipient and try to send an test notification i get the message:
Error: Notification has email recipients and is triggered, but sending emails failed. null
The same thing if i try it with an local user who has an email (User recipient)
When i start a sniffer on the firewall i see no communication via port 587. i have already entered the ip instead of the dns name in GRAYLOG_TRANSPORT_EMAIL_HOSTNAME. Also without success.
I have already tried deactivating the e-mail authentication to check whether packets are sent to the firewall in this way.
But nothing arrived here either.
Has anyone an idea what’s wrong here?
Thanks and best regards,