Zoho Mail uses several security protocols to filter emails that may pose a potential threat. Most of these measures can be configured by the organization admin to align with the organization’s security policies, and quarantining emails is one such option.

Quarantined emails are emails held due to suspected spam or because they match spam rules or incoming and outgoing email rules configured by the admin. Emails that are considered spam due to any validation errors, organization blocklists, or Zoho blocklists are quarantined.

Viewing Quarantined Emails       

When reviewing quarantined emails, Trident displays key information to help the admin or the moderator evaluate whether the email should be delivered or not. The following details are shown for each quarantined email:

• Sender’s email address

• Email subject

• Original sender (if the email was forwarded)

• Recipient’s email address

• Date and time the email was sent

Managing Quarantined Emails 

When an email meets the criteria defined in the configured spam processing rules, it is quarantined. Quarantined emails will be sent to the organization admin for review. To deliver a single email to the intended recipient:

1. Click the email notification from Zoho Mail.

2. Under Quarantined Emails, select Deliver.
   

To deliver multiple quarantined emails to the intended recipient:

1. Select the checkbox next to each email you want to deliver.

2. Click Deliver Selected.
   

To deliver all quarantined emails:

1. Click the checkbox next to the View Emails in Quarantine button.

2. Click Deliver Selected.