Configuring Email monitors
- Last Updated: April 2, 2026
- 2 minute read
Email monitors check a mail server by first sending the server an email via SMTP. The monitor then attempts to delete previously sent emails using either POP3 or IMAP. If the email from WhatsUp Gold is not present in the inbox, the mail server is considered down. For example, see Example: Email monitor.
The email active monitor supports encryption with SSL/TLS and SMTP authentication which ensures that the monitor sends emails to a secure email account.
It is important that you use a separate email account for every monitor that you create. Using the same email account for multiple monitors results in false negatives. For example, if you want to check both IMAP and POP3 on the same server, and create two instances of the monitor—one configured with POP3 and one with IMAP—you must use two separate email accounts. Otherwise, one monitor deletes all emails previously sent from both instances of the monitor and incorrectly reports the mail server as down.
Other than the email account username and password, credentials are not required for the Email Monitor.
The Email Monitor is available in WhatsUp Gold Premium Edition. To update your license, visit the WhatsUp Customer Portal.
Configure the following:
- Name. Enter a unique name for the active monitor. This name displays in the Monitor Library.
- Description. Enter additional information about the monitor. This description displays next to the monitor name in the Monitor Library.
Outgoing mail
- SMTP server. Enter the address of the server on which SMTP is running. Use the default, %Device.Address, to use the device IP address on which the monitor is attached.
- Port. Enter the port on which the SMTP service is listening. The standard SMTP port is 25.
- Mail to. Enter the address to which the Email Monitor sends email.
- Mail from. Enter the address you want listed as "From" in the email sent by the Email Monitor.
Incoming mail
- Mail server. Enter the address of the server on which the POP3 or IMAP service is running. Use the default, %Device.Address, to use the device IP address on which the monitor is attached.
- Account type. Enter the protocol (POP3 or IMAP) you want the monitor to use to check for correct email delivery.
- Username. Enter the username of the account in which the monitor uses to log in.
- Password. Enter the password for the account in which the monitor uses to log in.
- Advanced. (Optional) Select to configure additional advanced options, including authentication and encryption options.