StorageGRID 的 SMTP 服务器 x509 证书由未知机构签名的错误

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StorageGRID

问题描述

使用 TLS 设置电子邮件警报时，测试发送失败，出现错误 x509 certificate signed by unknown authority

以下日志可以在 /metrics/promethus.log

Aug 7 13:06:31 eu50sgvp0XX ALRTMGR[15917]: ts=2025-08-07T13:06:31.311Z caller=dispatch.go:352 level=error component=dispatcher msg="Notify for alerts failed" num_alerts=1 err="email-receiver-758cfac5-92a5-4ea6-9c52-f4c705d5abf2/email[0]: notify retry canceled after 21 attempts: send STARTTLS command: x509: certificate signed by unknown authority"

Aug 7 13:06:31 eu50sgvp0XX ALRTMGR[15917]: ts=2025-08-07T13:06:31.316Z caller=notify.go:732 level=warn component=dispatcher receiver=email-receiver-758cfac5-92a5-4ea6-9c52-f4c705d5abf2 integration=email[0] msg="Notify attempt failed, will retry later" attempts=1 err="send STARTTLS command: x509: certificate signed by unknown authority"

Aug 7 13:06:31 eu50sgvp0XX ALRTMGR[15917]: ts=2025-08-07T13:06:31.317Z caller=notify.go:732 level=warn component=dispatcher receiver=email-receiver-758cfac5-92a5-4ea6-9c52-f4c705d5abf2 integration=email[0] msg="Notify attempt failed, will retry later" attempts=1 err="send STARTTLS command: x509: certificate signed by unknown authority"

Aug 7 13:06:31 eu50sgvp0XX ALRTMGR[15917]: ts=2025-08-07T13:06:31.323Z caller=notify.go:732 level=warn component=dispatcher receiver=email-receiver-758cfac5-92a5-4ea6-9c52-f4c705d5abf2 integration=email[0] msg="Notify attempt failed, will retry later" attempts=1 err="send STARTTLS command: x509: certificate signed by unknown authority"