StorageGRID 警报电子邮件通知到外部 SMTP 服务器失败

• StorageGRID 中的电子邮件警报通知不起作用。
• 警报已触发，但未发送电子邮件。
• 以下错误可能会在 Prometheus.log 中观察到

Jan 24 22:50:01 N1-Node[16069]: ts=2026-01-24T22:50:01.536Z caller=notify.go:732 level=warn component=dispatcher receiver=email-receiver-68b59e29-c607-4685-8127-aaaaaa integration=email[0] msg="Notify attempt failed, will retry later" attempts=9 err="createSMTPclient: read tcp 10.XXX.XX.XXX:32774->10.56.XXX.X:X: read: connection reset by peer"

Jan 24 22:50:07 N1-Node[16069]: ts=2026-01-24T22:50:07.063Z caller=dispatch.go:352 level=error component=dispatcher msg="Notify for alerts failed" num_alerts=1 err="email-receiver-68b59e29-c607-4685-8127-aaaaaa/email[0]: notify retry canceled after 20 attempts: createSMTPclient: read tcp 10.XXX.XX.XXX:32774->10.56.XXX.X:X: : read: connection reset by peer"

Mar  6 07:04:35 node01 ALRTMGR[31011]: ts=2026-03-06T07:04:35.111Z caller=dispatch.go:352 level=error component=dispatcher msg="Notify for alerts failed" num_alerts=2 err="email-receiver-e0e1cb11-b36d-4350-a769-eeeeee/email[0]: notify retry canceled after 2 attempts: establish connection to server: dial tcp 10X.XXX.XXX.XX:25: i/o timeout"