Troubleshooting

    I'm Not Receiving Alerts

    Triage missing or delayed alerts: quiet hours, channels, spam, thresholds, maintenance mode, escalation policies, and acks.

    Updated 2026-06-15
    3 min read
    alerts
    notifications
    missing

    Quick answer

    Why am I not receiving downtime alerts??

    Check the recipient email/SMS is verified, quiet hours aren't muting delivery, the escalation policy is attached to the site, and the channel's rate limit isn't triggered.

    I'm Not Receiving Alerts#

    Check These First#

    #### 1. Quiet Hours

    Are your quiet hours active? Go to Settings → Notifications → Alert Preferences and check the quiet hours schedule. Non-critical alerts are suppressed during quiet hours — they still show in the Alerts Inbox marked suppressed with a scheduled-for time.

    #### 2. Alert Channels

    Verify your notification channels are configured:

  1. Email: Check Settings → Notifications for the correct email address (and per-site override under Edit Site → Notifications)
  2. Slack / Teams / Discord / Google Chat / Mattermost / Rocket.Chat: Verify the webhook URL is still valid (webhooks can expire, be deleted, or have their channel archived). For Teams, legacy O365 URLs (outlook.office.com / webhook.office.com) still work but are being retired — see Teams Integration.
  3. Telegram: Confirm the bot is still in the chat/group and the bot token hasn't been revoked in @BotFather.
  4. ntfy: Open the topic in the ntfy app/browser and check that the device is subscribed and online.
  5. PagerDuty: Confirm the integration key matches an active service.
  6. Push notifications: Check browser permissions (click the lock icon in your browser's address bar).

    7. #### 3. Spam/Junk Folder

    LemWatch emails come from alerts@lemwatch.com. Check your spam folder and add this address to your contacts/allowlist.

    #### 4. Consecutive Failure Threshold

    If set to 2 or 3, you won't get alerts for single failed checks. Go to Settings → Notifications → Alert Preferences to check your threshold.

    #### 5. Maintenance Mode

    Is the site in maintenance mode? Alerts are suppressed during maintenance. Check the site's Settings tab.

    #### 6. Alert Type Configuration

    You may have disabled certain alert types. Go to Settings → Notifications and check which event types are enabled.

    #### 7. Escalation policy already acknowledged

    If the site is attached to an escalation policy and somebody already clicked Acknowledge on the incident, the remaining escalation steps stop firing on purpose. Reopen the incident or remove the ack to resume escalation. See Acknowledging incidents.

    #### 8. Escalation policy not attached

    A per-site policy only fires when it's selected on the site. Open Edit Site → Notifications → Escalation policy and confirm one is chosen.

    Still Not Working?#

  7. Go to Settings → Notifications and click Send test next to each configured channel
  8. If the test alert arrives, the channel works — the issue may be that no alerts have been triggered
  9. If the test alert doesn't arrive, the channel configuration needs updating
  10. Contact support if you've verified all settings and still don't receive alerts
    11. Was this article helpful?

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    Quiet Hours & Alert Frequency

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