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RHOCP 4 で、セキュアでない接続の場合に alertmanager がメールアラートの送信に失敗する

Solution Verified - Updated -

Issue

  • alertmanager が、セキュアでない接続の場合にアラートをメール受信者に送信できません。
  • 以下のログが、alertmanager Pod で見られます。

    level=warn ts=2023-03-20T22:41:37.726Z caller=notify.go:724 component=dispatcher receiver=Critical integration=email[0] msg="Notify attempt failed, will retry later" attempts=1 err= "*smtp.plainAuth auth: unencrypted connection"
    level=warn ts=2023-03-20T22:41:37.735Z caller=notify.go:724 component=dispatcher receiver=Critical integration=email[0] msg="Notify attempt failed, will retry later" attempts=1 err= "*smtp.plainAuth auth: unencrypted connection"
    
  • SMTP 認証でセキュアでない接続を使用することはできますか?

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4

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