Could not connect to SMTP host: xxx, port: nn, response: 554

Elastic Stack Elasticsearch
1

Hi,
I am getting below error on watcher email alert. Hosts and port are defined in elasticsearch.yml

Could not connect to SMTP host: xxx, port: nn, response: 554"

smtp:
auth: False
starttls.enable: False

2

What do your mail logs show?

3

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