IMAP keeps phones, laptops and webmail in sync. Monitor your IMAP server so you know about downtime and slow responses before your users start calling.
With IMAP the mailbox stays on the server, so an outage locks people out of their whole history, on every device at once.
An IMAP monitor connects on a schedule, verifies encryption and the server’s answer, and alerts you when anything is off.
Every check is stored in a full log, so you can see exactly when and how something changed.
Not encrypted, SSL/TLS or STARTTLS.
Match a string in the server response for precision.
Commonly 143 or 993.
See slowdowns build up before they become outages.
From sign-up to your first alert in a few minutes.
Host, port and encryption.
Optionally require a response string.
Choose who is told and how.
Sensible defaults get you started; every option below can be tuned per monitor.
| Setting | What it does |
|---|---|
| Domain / IP | The IMAP server. |
| Port | Port for IMAP communication. |
| Encryption | Not encrypted, SSL/TLS or STARTTLS. |
| String to expect | Text the response must contain. |
| Frequency | How often the check runs: 1 to 120 minutes. The Free plan checks from every 15 minutes; Premium from every minute. |
| Locations | Run the check from one or several of 9 locations: Spain, France, United Kingdom, USA (New York, Los Angeles), Australia, Singapore, Japan and Germany. |
| Notifications | Pick any of your pre-configured alert channels: e-mail, SMS, Telegram, Slack, Messenger, voice call, webhooks and more. |
| Status page | Make the statistics of this monitor public or private. |
| Tags | Group monitors with tags to keep large accounts tidy. |
| IP version | Force IPv4, IPv6, or let Upzilla use whichever is available. |
Catch outages of your main mail platform.
Watch customer-facing mail clusters.
Confirm the backend behind webmail is reachable.
Verify service after a mail server update.
Create as many notification methods as you like, even on the free plan.
Port 143 for plain or STARTTLS and 993 for SSL/TLS.
You can monitor any IMAP endpoint that accepts connections, though large providers rarely need it.
No. It only checks connection and server response.
Yes, see Mail Server Monitoring for a complete setup.
No card required. 10 monitors of any type, free.