Report Spam via IMAP

You can report spam via our IMAP system using your own third-party email client.

IMAP (Internet Message Access Protocol) is a standard email protocol that stores email messages on a mail server, and allows email clients to access those messages remotely.

Users on a Spam Experts Local Cloud can use the hostname of the primary server in that cluster (or a CNAME associated to it).

For Local Cloud users, you may use the super-admin account, which can be used to retrieve IMAP access to all quarantined messages.


In order to access your messages stored in the Spam Experts Quarantine from Outlook using IMAP, you need to set up your email client with the following Spam Experts credentials:

  • IMAP hostname: or for Local Cloud customers, this should be your primary server's hostname
  • IMAP username: The domain user account's username or email user account's username (these need to exist in Spam Experts first)
  • IMAP Password: The password for the above username

And either:

  • Implicit TLS connection IMAP Port: 993
  • or

  • Explicit TLS connection IMAP Port: 143 and STARTTLS

Spam Experts can only support TLS 1.2 and above. If you have an older client which does not support this, please update the client.

Instructions using Microsoft Outlook

  1. Open the Outlook app
  2. Navigate to File, select add account
  3. Expand Advanced Options and check Let me set up my account manually

  4. Select IMAP
  5. Fill the IMAP Account Settings as follows:

    • Incoming mail server: or for Local Cloud customers, this should be your primary server's hostname
    • Port: 993
    • Encryption method: SSL/TLS
    • Outbound mail server: your clients outbound SMTP server address
    • Port: port on the outbound SMTP Server (usually 587, but this might differ based on your Mail server and its configuration)
    • Encryption method: As configured on the outbound SMTP server
  6. Click Next
  7. Enter the password for the super-admin, domain or email user used
  8. Click Connect and once verification is complete, click Done to close the wizard
  9. Right click the account which now shows in your Outlook app and click IMAP Folders

  10. Click Query and a list of IMAP folders will be displayed
  11. Ensure you are subscribed to a selection of the following folders, depending on the requirements:
    • Caught
    • Not Spam
    • Release
    • Release and Train
    • Release and Train/Not Spam
    • Spam

  12. Click Apply and OK to close the window