Alert emails come from Uptimecheck <noreply@uptimecheck.com>, with subjects such as “Down: Checkout”. If one didn’t arrive, work through these checks in order.
Does the monitor have a channel?
- Open the monitor. Its page says where alerts go, or warns that it has No alert channels, that they are all paused or that none of them is delivering, so nobody is alerted. Choose Choose channels to fix it.
- Under Alert channels, each channel says when its last alert was delivered. Not delivering means its last alert still failed after five tries over about 40 minutes; the reason is shown under the channel. Fix it and use Send test: when the test arrives, the warning goes.
- An incident’s Timeline shows each alert as sent or failed, with the reason. Sent means our mail server accepted it; from there, the receiving side decides.
- Check the addresses in the email channel under Alert channels. A channel holds up to 10, separated by commas.
- A new workspace starts with one email channel, My email, to the person who created it. Teammates only get alerts when their address is in a channel.
Send a test
- On the monitor, open the ⋯ menu and choose Send test alert. It goes to the monitor’s channels, except paused ones and SMS, and says which got it.
- Under Alert channels, Send test tests one channel. The email’s subject is “Uptimecheck test alert”.
Look in spam and quarantine
- Search your spam or junk folder for noreply@uptimecheck.com.
- Microsoft 365: mail held by Microsoft Defender waits in quarantine at security.microsoft.com/quarantine, where an admin can release it. Add the address to Safe senders in Outlook, or ask your admin to allow it in the Tenant Allow/Block List.
- Gmail: create a filter for
from:noreply@uptimecheck.comwith Never send it to Spam. In Google Workspace, an admin can check Manage quarantines in the Admin console. - Shared addresses: Microsoft 365 groups, distribution lists and Google Groups often refuse mail from outside your organization. Allow external senders, or put people’s own addresses in the channel.
- Our mail is signed with DKIM for uptimecheck.com. Allowlist the address or the domain, not an IP address.
Was an alert due?
- Escalation: a channel that waits, such as If down for 5 minutes, only hears about outages that last that long and that nobody acknowledged first.
- Paused channels send nothing until you choose Resume alerts in their menu.
- Maintenance windows stop checks and alerts for their monitors.
- Blips: a failed check that passes when it is repeated opens no incident and sends nothing.
- Paused monitoring: after a trial or subscription has ended nothing is checked, so nothing is alerted. Settings › Billing says so.
- Recovery alerts go to the channels the outage alert was sent to. If the site came back before the outage alert got through, that late alert isn’t sent, but the recovery is, with how long the site was down.
Email can be slow or filtered, so give the monitors that matter most a second channel, such as push notifications or Slack. See how to add alert channels and alerts and notifications.