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How to monitor an email server in GuardYak

When a mail server stops answering, messages queue up or bounce and nobody notices until a customer complains. An SMTP check connects to the server on its mail port and confirms it greets you like a working mail server should.

Before you start

  • A GuardYak account (every check type is available on the free plan)

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Transcript

Hear about a dead mail server before your customers' email starts bouncing. Here's how to monitor an email server in GuardYak.

Start a new check and choose SMTP.

Name the check and enter the mail server's host name. Choose the port. Five eight seven is the usual one for sending mail.

Select Next, then add the email address that should hear about problems.

Select Review, check the summary, and create it. The new check joins your list, and GuardYak starts checking on its next run.

Steps

  1. Choose the check type ▶ 0:10

    In Checks, select + New check, then select SMTP.

    New check page with the SMTP check type highlighted

  2. Fill in the details ▶ 0:13

    Enter a Check name and the mail server's Host, then choose the Port: 25, 465 or 587.

    Configure step for a SMTP check with its fields filled in

  3. Choose who gets alerts ▶ 0:22

    Select Next. Under Address, enter the email that should receive alerts.

    Notify step with an email address entered for alerts

  4. Create the check ▶ 0:28

    Select Review, check the summary, then select Create check. The new check appears on Checks.

    Checks list showing the new Outgoing mail server check
ResultThe check appears on Checks with type SMTP and the host and port as its target.

Next steps

Updated 2026-11-03