Manage sub-domain emails using sub-domain stripping

Manage sub-domain emails using sub-domain stripping

As an admin, you may need separate domains for different departments such as sales, support, and marketing. While this approach offers flexibility, creating and managing multiple domains can quickly become overwhelming, especially since each domain requires time-consuming configuration and DNS management.

This is where sub-domain stripping comes in to simplify your workflow.

How does sub-domain stripping help?
Sub-domain stripping is the process of routing all emails delivered to sub-domains directly to the main and primary domain.
Example:
Emails sent to user@sales.admin.com will be automatically delivered to user@admin.com.
Instead of managing multiple standalone domains, you can simply create sub-domains under your primary domain, such as:
This approach significantly reduces domain setup and DNS record configuration.
Once the sub-domains are created, you can enable the sub-domain stripping option from the Admin Console. This ensures that all emails addressed to your sub-domains are routed to your main and primary domain, allowing you to manage everything from a single place with minimal effort.

Use cases of sub-domain stripping
  • Securing unused and vulnerable sub-domains:
    Attackers claim an organization’s sub-domain identity to host phishing or malicious content. This typically happens due to unattended or dangling DNS records associated with unused sub-domains. This method used by cyber attackers is called sub-domain takeovers.

    By using Sub-domain stripping, you can prevent malicious or misdirected emails from being infiltrated into your organization, reducing the risk of exploitation.

  • Simplified email handling for trial and test environments:
    Admins can set up a trial on a sub-domain and use sub-domain stripping to forward incoming emails to the main domain. 
    In this scenario:

    1. You need not change the MX records of your actual domain. 
    2. Simply create and update the MX records for a subdomain (Example:  sub.yourdomain.com).

    This allows you to complete setup tasks like adding/ verifying the domain, creating user accounts etc, without pointing the MX records. 

    You can also enable email forwarding for some selective accounts, from
    user@yourdomain.com to user@sub.yourdomain.com, until you are ready to update the MX records of the actual domain. 

  • Managing forgotten sub-domains in External Attack Surface Management (EASM):
    External Attack Surface Management (EASM) focuses on identifying, diagnosing, and eliminating forgotten, abandoned, or unused sub-domains whose DNS records still point to external or third-party services.

    These sub-domains are often created for temporary activities like marketing campaigns, surveys, or polling. Once the activity ends, the third-party service is cancelled, but the DNS records remain, pointing to a non-existent resource.

    By enabling sub-domain stripping, all emails sent to these sub-domains are automatically redirected to your original main domain, reducing exposure and improving control.

  • Centralized email traffic monitoring across sub-domains:
    As an admin, tracking the volume of incoming emails to your primary domain is often essential.

    With sub-domain stripping enabled, all emails sent to sub-domains are re-routed to the main domain. For example:

    1. Emails addressed to user@sales.main.com
    2. Emails addressed to user@support.main.com

    Both will be delivered to user@main.com, making it easier to group, monitor, and analyze incoming email traffic.

  • Reduce email alias management:
    Email alias is commonly used to receive emails without exposing your primary email address. However, managing a large number of aliases can create additional administrative overhead.

    Sub-domain stripping simplifies this by routing all incoming emails sent to a specific sub-domain to a single destination mailbox. This eliminates the need to create and maintain individual aliases, reduces configuration complexity, saves administrative time, and better user experience.
How to enable Subdomain Stripping in Zoho Mail Admin Console?
  1. Navigate to Domains section.
  2. Select the domain for which subdomain stripping has to be configured.
  3. Navigate to Subdomain Stripping under Advanced Settings.
  4. Click the toggle button to turn on subdomain stripping for the domain.
  5. Click the Enable button in the Confirm Action! pop-up to activate subdomain stripping for the domain.Enable sub-domain stripping
 
Pro Tip: Sub-domain stripping not only simplifies email management but also strengthens security and improves visibility, making it a powerful tool for modern admins.






      Zoho Campaigns Resources


        • Desk Community Learning Series


        • Digest


        • Functions


        • Meetups


        • Kbase


        • Resources


        • Glossary


        • Desk Marketplace


        • MVP Corner


        • Word of the Day


        • Ask the Experts


          Zoho CRM Plus Resources

            Zoho Books Resources


              Zoho Subscriptions Resources

                Zoho Projects Resources


                  Zoho Sprints Resources


                    Zoho Orchestly Resources


                      Zoho Creator Resources


                        Zoho WorkDrive Resources



                          Zoho CRM Resources

                          • CRM Community Learning Series

                            CRM Community Learning Series


                          • Tips

                            Tips

                          • Functions

                            Functions

                          • Meetups

                            Meetups

                          • Kbase

                            Kbase

                          • Resources

                            Resources

                          • Digest

                            Digest

                          • CRM Marketplace

                            CRM Marketplace

                          • MVP Corner

                            MVP Corner




                            Zoho Writer Writer

                            Get Started. Write Away!

                            Writer is a powerful online word processor, designed for collaborative work.

                              Zoho CRM コンテンツ




                                ご検討中の方

                                  • Recent Topics

                                  • Are custom portals accessible on the Zoho learn smartphone app?

                                    In other words, can users external to my organisation, once signed up, use the app in the same way as internal users? Thanks
                                  • How to increase my Zoho sign limit.

                                    I cannot send a document/contract for signature. Zoho sign says I reached my monthly limit. May I know how to fix this please? Thanks! 
                                  • Can not add m365 outlook account to zohomail.

                                    I am attempting to use zoho mail as an imap client to add my outlook.com m365 account. In the m365 exchange admin center i have made sure the imap is enabled. In zoho mail i go to settings, mail accounts, add account, add imap account, i select "outlook",
                                  • Unable to attach Work Order / Service Appointment PDF to Email Notifications (Zoho FSM)

                                    I’m trying to include the Work Order PDF or Service Appointment PDF as an attachment in Email Notifications (automation/notification templates), but I don’t see any option to attach these generated PDFs. Is this currently supported in Zoho FSM? If not,
                                  • local file csv import problem

                                    The issue occurs when I upload a CSV file via Databridge. In the preview, everything looks correct — the values are in the proper columns. However, after clicking Import, the first column becomes empty, and the values from that column appear in a new
                                  • Función Deshacer y Rehacer

                                    Hola. Soy un reciente usuario de Zoho Notebook que he migrado desde Evernote. He encontrado en falta una función que considero muy importante: un botón para "deshacer". Es frustrante cuando se borra un parte del texto o un archivo de una nota, generalmente
                                  • Tip #59- Technician Console: Exploring View option- 'Insider Insights'

                                    Hello Zoho Assist Community! Ever wondered how technicians adapt quickly during a live support session? Imagine a customer reaching out with an issue that’s disrupting their work. The technician starts a remote session and begins troubleshooting right
                                  • MRP or Manufacturing Module for Zoho

                                    We have been searching for options for a production planning or MRP that will integrate with Zoho.   Zoho Creator is pushed as a platform that can have an MRP built from scratch but we would like to find more of an out of the box solution and modify it to fit our needs.  Are there any recommendations? Would Zoho consider creating a custom solution in Creator to support this need?
                                  • encountering an error when attempting to associate an email with a Deal using the Zoho CRM extension in Zoho Mail.

                                    When I click "Yes, associate," the system displays an "Oops!! Something went wrong" error message. I have attached a screenshot of the issue for reference.
                                  • Can 1 Zoho CRM instance sync with 2 Zoho Marketing Automation instances?

                                    Can 1 Zoho CRM instance sync with 2 Zoho Marketing Automation instances?
                                  • Can I add Conditional merge tags on my Templates?

                                    Hi I was wondering if I can use Conditional Mail Merge tags inside my Email templates/Quotes etc within the CRM? In spanish and in our business we use gender and academic degree salutations , ie: Dr., Dra., Sr., Srta., so the beginning of an email / letter
                                  • Zoho mail account ownership transfer

                                    We recently took over another company and have assumed responsibility for its Zoho account, including Zoho Mail and all related services. We would like to formally transfer ownership of this account to our organization. Could you please outline the complete
                                  • Email Authentication is Failing

                                    I'm trying to setup gitlab with email authentication. I used the following configs picked up from: https://docs.gitlab.com/omnibus/settings/smtp/ gitlab_rails['smtp_enable'] = true gitlab_rails['smtp_address'] = "smtp.zoho.com" gitlab_rails['smtp_port']
                                  • DMARC reports for mail I didn't send: how to deal with?

                                    I know the enthusiastic amateur's bare minimum about e-mail; am able to set up a Thunderbird account and know the basic acronyms. I have a Zoho Mail account connected to my domain, and have set up SPF, DMARC and DKIM successfully according to Zoho's instruction
                                  • ms

                                    Email set up for communication
                                  • Fix the speed

                                    It takes ages to load on every step even though my dataset is quite small.
                                  • Capture Bank Charges for Invoice Payments

                                    We've added the Bank Charges field in the "Add Payments" page both in Zoho Invoice & Zoho Books. So all you need to do is to enter the bank charges when you record a payment for the invoices. This bank charge will be included to the amount paid for that invoice. Steps to add the bank charges while you record the payment:       1. Click the "Invoices" sub-tab under the "Money-In" tab.       2. Click the 'add payment' link for the invoice that you wish to record the payment for.       3. On the add
                                  • Image field in custom module

                                    Hi guy, Is there any hope of adding a custom image field in the custom module? We created a custom module to keep track of assets, and it would be helpful if we could attach an image to the record. Thanks Rudy
                                  • Deluge Function to Update Custom Field

                                    I'm trying to get a Deluge function (which will run as part of a Schedule in Desk) that retrieves all tickets with the status "Recurring" and updates the custom field checkbox "cf_recurring" to "true". Here's what I have, which doesn't work: searchValue
                                  • "View ticket" link is broken

                                    The "View ticket" link in our Zoho ticketing system confirmation emails is broken (please see attached). Impacts ability to update/review details, and, refresh recollection at a later date. Any help would be much appreciated.
                                  • import data from Apollo.ai into zoho crm via zoho flow

                                    I might be asking this question in the wrong forum. We use Apollo.ai to find potential new leads for our business, there are around 10000 leads that we have initially found. We have an Apollo.ai account but just to do searches, we dont use it as a crm.
                                  • Woocommerce Line Item Information

                                    I'd like to add each line item from a Woocommerce order to a zoho creator form record. The line items are found within the line items array, but I'm not sure how to get each item out of the array? Any help would be much appreciated.
                                  • Synching changes to Stripe when changes are made in Zoho Billing

                                    We have a situation where we have merged customers in Zoho BIlling and then found out later that the payment in Stripe was not updated and still associated with the old customer record. The card gets updated and billed, but that payment is still associated
                                  • How do I fix this? Unable to send message; Reason:554 5.1.8 Email Outgoing Blocked.

                                    How do I fix this? Unable to send message; Reason:554 5.1.8 Email Outgoing Blocked.
                                  • Disable Smart Filters By Default

                                    The smart filters "feature" is causing confusion for Zoho Mail users. New emails should be delivered to the inbox unless they have specifically opted to redirect them somewhere else. People don't understand that new emails might be waiting in a random
                                  • ME SALE ESTE ERROR: No fue posible enviar el mensaje;Motivo:554 5.1.8 Email Outgoing Blocked

                                    Ayuda!! Me sale este error al intentar enviar mensajes desde mi correo electronico de Zoho! Tampoco recibo correos pues cuando me envia rebotan. Ayuda, Me urge enviar unos correo importantes!! Quedo atenta MAGDA HERNANDEZ +5731120888408
                                  • Client Script | Update - Client Script Support For Custom Buttons

                                    Hello everyone! We are excited to announce one of the most requested features - Client Script support for Custom Buttons. This enhancement lets you run custom logic on button actions, giving you greater flexibility and control over your user interactions.
                                  • Zoho Mail not working

                                    Zoho Mail not working
                                  • I can't add a new customer in Zoho invoice? Anyone had this issue before?

                                    Ive been using Zoho invoice for over 6 years. Today I wanted to add a new customer to send an invoice to but it doesn't save when I try to access it from the pulldown menu when you go to send a new invoice.
                                  • Spreadsheet View click & focus issue in Arabic (RTL) localization

                                    Hello Zoho Support Team, I am facing an issue in Zoho Creator Spreadsheet View when using Arabic localization (RTL). Scenario: My app supports English (LTR) and Arabic (RTL). I created a Spreadsheet View for a form. In English, everything works correctly.
                                  • Customer address in Zoho Bookings

                                    Hello,  Is it possible to add customer address information to the Zoho bookings appointment screen? Or have it pull that information automatically from the CRM? We are wanting to use this as a field management software but it is difficult to pull the address from multiple sources when it would be ideal to have a clickable address on the appointment screen that opens up the user's maps.  It would also be advantageous for the "list view" to show appointment times instead of just duration and booking
                                  • Ghost email notification on a form

                                    Hello, We have recently encountered an error where I can not see a email notification set up for a form which I am currently the owner, although neither the form nor the notification were created by me. However, neither can the Super Admin access the
                                  • bulk edit records and run internal logic

                                    hi there is few logics in manner "it this than that" logics work well when i edit entry openning it one by one (via workflow "on add/edit - on success" , for custom field "on update/on user input") but when i try bulk edit records - logic does not work.  how can i turn on logic to work as programmed - for mass editing records via bulk edit?
                                  • Bulk bank rule creatioin

                                    Hi team, I am exploring Option to create a multiple bank rule. Could please suggest the option to implement this?
                                  • Limitations on editing a message in Cliq

                                    Hi I've checked the documentations and there's no mention of how many times a message can be edited. When trying with code, I get various numbers such as ~1000 edits or so. Please mention if there's a limit on how many times one can change a message via
                                  • email address autocomplete

                                    Is there a way to eliminate certain addresses from showing up in auto complete when entering an address? Many old and unused addresses currently show up, many of which I would like to get rid of. Thanks
                                  • How to use MAIL without Dashboard?

                                    Whenever I open Mail, it opens Dashboard. This makes Mail area very small and also I cannot manage Folders (like delete/rename) etc. I want to know if there is any way to open only Mail apps and not the Dashboard.
                                  • How can i download and secure all my mails from the archive folders?

                                    Hi, i would like to download all my mails from my archive folders and secure it on my external HDD. Is this possible? Thx. amir
                                  • How to open filtered report in popup using Zoho Creator Deluge?

                                    First report: There is so many records in Report, If I click one record, pop up is occur. Second report (Pop up): there is also so many record data, and this pop up is also Report, not Form. First report: It has got "Sales Order" field. when I click any
                                  • Can you default reports/charts to report the current week?

                                    Our data table maintains two years of data. Management wants certain report to automatically filter the report to the latest calendar week. I know I can do this manually with filters but I want the report to automatically default to the latest calendar
                                  • Next Page