How to create a filter that moves incoming emails with no subject to a specified folder?

How to create a filter that moves incoming emails with no subject to a specified folder?

What should I enter in the condition field?

I've tried:
  1. Empty field -> result is: "Provide some criteria"
  2. "" -> result is: filter is not created at all, and clicking the "Save" button has no effect nor raises any errors
  3. '' -> result is: filter is not created at all, and clicking the "Save" button has no effect nor raises any errors
  4. (No Subject) -> result is: filter is created, but emails with the subject "(No Subject)" are moved to a specified folder
I also tried exporting the filter with the "(No Subject)" condition and changing the line

condition=" AND (subject,is,(No Subject))"

to:
  1. condition=" AND (subject,is,)"
  2. condition=" AND (subject,is,"")"
  3. condition=" AND (subject,is,'')"
but every time when I tried to import the filter back (before that I deleted the old filter from Filters, filter exported earlier), in every case I just get notification "There are no filters in the selected file to import!" until I change the line back to

condition=" AND (subject,is,(No Subject))"

and then after importing the filter back I get notification "Filters have been imported." but condition is now just "No Subject" (without parentheses "()") and now emails with the subject "No Subject" are moved to a specified folder.

Help pages Filters and Incoming Filter doesn't provide any help for this case.

Is it even possible to filter incoming emails with no subject in Zoho Mail email filters?

Thanks


      • Sticky Posts

      • Zoho Mail POP & IMAP Server Details

        Hello all! We have been receiving a number of requests regarding the errors while configuring or using Zoho Mail account in POP/ IMAP clients. The server details vary based on your account type and the Datacenter in which your account is setup. Ensure

      • Important update on Group Management | Zoho Mail

        Dear Zoho Mail Community, This post is to inform you all of the following updates on the Group Management in Zoho Mail. Group Member Addition: If a group member is added to an organization group in a Zoho Application, the member will be automatically

      • Mastering email etiquette and best practices to follow in Zoho Mail

        Hello Zoho Mail Community, We’re thrilled to invite you all to our upcoming webinar: Mastering email etiquette and best practices to follow in Zoho Mail. Join our live webinar for expert etiquette tips to enhance your professionalism and elevate your

      • 📣 📣 ZUG Meetups India - Explore Hybrid Workspaces using Zoho Workplace - Meet and Learn! 🧑🏽‍💻🧑🏽‍💻

        We are excited to announce the User Community initiative to meet you all in person and help you explore the need of the hour - Hybrid Workspaces using Zoho Workplace. We aim to help you to setup your Digital Workplace effectively so that your employees

      • Announcing Zoho Mail - Inactive user Policy

        Dear Zoho Mail users, Thanks to all of you for your continuous support.  We have recently started implementing the Inactive User Policy, for Zoho Mail.  A user is considered as inactive, if the user has not logged in to the Zoho mail account for a period of more than 120 days. The login through POP, IMAP and Active Sync are all taken into account for tracking the period of inactivity.  Whoever received the communication need not panic, as we have just communicated our policy to all the users.  To