Troubleshoot — The alert fired but the NOC got no email

حل مشكلة — الـ Alert اشتغل بس الـ NOC موصلهوش إيميل

Ticket INC-5120 (Sev 2): "vm-ts5 hit 100% CPU overnight. The alert cpu-ts5 is visible in the portal as Fired, but the NOC mailbox ( noc@contoso.com ) received nothing. Routing is done by the processing rule route-noc-ts5 , which we did not touch." Reproduce the problem, find the real cause, fix it, harden the setup so one processing rule cannot silently mute this alert again, and prove the NOC gets the email.

The 4 tasks you will do

• Task 1 — Reproduce and read the alertالمهمة 1 — اعمل Reproduce واقرا تفاصيل الـ Alert
• Task 2 — Remove the forgotten suppressionالمهمة 2 — شيل الـ Suppression المنسية
• Task 3 — Harden the critical alertالمهمة 3 — قوّي الـ Alert المهم
• Task 4 — Prove the NOC is pagedالمهمة 4 — اثبت إن الـ NOC بيتبلّغ