How to Block a Sender in Zoho Mail

Block or filter messages from unwanted senders and domains

An illustration of email being blocked by sender email address.

 ryccio/Getty Images

A newsletter from which you just don't seem to be able to unsubscribe and the odd radio station that keeps emailing you in a language no online translator recognizes — these are delivery annoyances you know to ignore and delete. However, the reasons to block senders are many, and you can clean up your Inbox by blocking them instead of spending time deleting their emails.

In Zoho Mail, there are two ways to block senders. You can set up a filter from an existing message or place the sender's address or their entire domain on Zoho Mail's list of blocked senders.

Blacklist a Sender or Domain in Zoho Mail

Screenshots illustrating how to block a sender's email address or domain name in Zoho Mail.

To have Zoho Mail delete messages from a certain sender or an entire domain automatically:

  1. Follow the Settings link in Zoho Mail.
  2. Go to the Mail Settings category.
  3. Look for Anti-Spam.
  4. Click Blacklist email addresses.
  5. Then on the Anti-Spam Lists page, type the email address (, for instance) under the Blacklist section of the Email Address columns. Alternatively, to block mail from an entire domain, type the domain name ( that you want to block under Blacklist section of the Domains columns.
  6. Click the + button or press the Enter key to add the address or domain to the list.

Use Message Filters to Delete Unwanted Mail

Screenshots illustrating how to create a mail filter to automatically delete mail in Zoho Mail.

You can also set up a filter that deletes a sender's messages automatically:

  1. Open a message from the undesired sender.
  2. Select the More actions arrow in the upper right corner of the message.
  3. In the menu that opens, hover your cursor over Add to.
  4. Select Filters from the menu that opens.
  5. Choose the criteria you'd like to use for the filter. (In the example above, we left the Condition Type set as Any of these conditions. Then under Conditions, we removed the Subject condition, left the From condition as is, and removed the To/Cc condition. Then we set the Action to Delete email (Trash) and chosen the option Do not process other filters.)
  6. Click Save.
  7. Your filter will be set and the next time an email from that sender arrives, it will automatically be deleted (if you use the same settings as the example).