Facing Email alert error issue in Grafana while triggering the test email notification

The below error i am getting when i am trying to trigger the mail from alertmanager in grafana:
level=warn ts=2021-04-29T05:22:51.865Z caller=notify.go:674 component=dispatcher receiver=email integration=email[0] msg=“Notify attempt failed, will retry later” attempts=1 err="send STARTTLS command: x509: certificate has expired or is not yet valid: "

Please let me know , any solution on it. Any help would be appreciated.

Hi @sagar123,

When you set up the email notification channel, did you test it? And was that test successful?

I have tested and it was successful.

Just a quick note here that alerting is getting a MAJOR update in Grafana 8, which will get released June 7.