Blocked Email

Blocked Email

We are a Zoho One subscriber and use Yahoo as our MX provider.

A few times each year, for the past four years, CRM blocks one or more of my Zoho One users from receiving internal email from CRM.  This includes "@mentions" in all modules, and emails from ' notifications@zohocrm.com'.

When I talk to Zoho Support, the first reaction is "we don't see a block." When I insist, they dig further and find the block. Correctly, they require an email request to unblock from superadmin and the affected user.

It is almost certainly the case that my users are not proactively unsubscribing from internal zoho notification emails...they rely on those notifications to do their work.

Is there anything I can do within Zoho to ameliorate this problem? Can I have "notification" email come from our fully authenticated domain?

Here's what's probably happening...

Yahoo Mail has notoriously aggressive spam filters, and automated CRM notifications are a common trigger, even when properly authenticated (which yours are).

Why Yahoo Auto-Flags CRM Emails:

Bulk sending patterns - Even though it's one email, it comes from a bulk sending infrastructure (notifications.zohocrm.com)

"Re:" subject line - Yahoo may see this as suspicious since it's an automated "Re:" without a clear conversation thread

High HTML complexity - CRM notifications often have heavy HTML/CSS (I see this email was 80KB - quite large)

Generic "from" address - not********@zohocrm.com looks impersonal

Automation headers - The email literally says xcrm-src: Automation in the headers

What You Can Do:
Immediate fixes:

Use a custom domain for sending - Instead of notifications.zohocrm.com, send from @yourdomain.com with a friendlier "from" name
Simplify email content - That 80KB email is huge. Strip down unnecessary formatting
Improve subject lines - Avoid "Re:" in automated emails. Use clear, direct subjects like "Action Required: Sign Deal Documents"

Long-term solutions:

4. Separate internal/external sending - Use different email configurations for employee notifications vs customer emails

5. Whitelist request - Have employees add your CRM notification address to their contacts/safe senders

6. Reduce email volume - Consolidate notifications into digests where possible
In Zoho CRM:

Check Settings → Email → Delivery Settings
Consider using a dedicated sending domain with better reputation
Review your email templates to reduce size/complexity

Even with perfect authentication, Yahoo's filters are algorithmic and can be overly aggressive with automated business emails.

      • Recent Topics

      • Subform auto populate values

        Hi Team, I’m trying to retrieve values from Zoho People using API functions and dynamically populate them into a subform. For example, I’ve created a form with several fields that users will fill out. Based on their input, I need to fetch records from

      • Can't we let users decide which options they'd like to add at embed widget?

        It seems embed widget DOES NOT offer a feature, where users can choose options upon subscribing plans. What Zoho has instead, is that admins have to manually create plan with options. How come no one in Zoho dev team never raised issue about usability

      • Reupload and rename from one field to another field (file upload)

        Hi Everyone, Sorry, i have question to use invoke url for rename and reupload attachments file to another field. Tested on development mode. Zoho C6. Refer to https://www.zoho.com/creator/help/api/v2/upload-file.html look my error notification. Does anyone

      • Printing Multi-Page Reports (PDF Export)

        Hi, I am moving a report from Google's Looker Studio to Zoho Analytics and trying to reproduce the Looker page by page dashboard editing experience. With Google, what you see is what you get when you print to PDF. But I can't seem to create the same experience

      • I NEED TO NUMBER TO TEXT NO HERE

        =NUMBERTEXT NEEED

      • Error: View is not present in the workspace

        When saving a dashboard, user receives a popup with the following error. "View is not present in the workspace" What does this mean or refer to? There is no further insight given.

      • Dear Zoho CEO: Business Growth is about how you prioritise!

        All of us in business know that when you get your priorities right, your business grows. Zoho CRM and Zoho Books are excellent products, but sadly, Zoho Inventory continues to lag behind. Just this morning, I received yet another one-sided email about

      • zoho creator view is not present in the workspace and blank reports

        Hi Support,  Users who have "write" permissions keep getting this error for all of our embedded reports all of a sudden. See screen shot below: Meanwhile, my developer permissions account sees a blank screen in view and edit mode as shown in the screenshots

      • Is there any way to send an Excel received by email to Dataprep?

        Every day I receive an email alert with an Excel file that I want to process through a Dataprep pipeline. To do this, I need to: -Save the file to disk -Open the pipeline -Run the pipeline -Update the source -Several clicks to select and open the saved

      • Bin Locations

        Dear all, I am wondering if someone has the ability to develop the bin locations option for zoho inventory (integrated with zoho books) Regards, Ryan

      • Create and populate a record in an instant: Introducing zero-shot field prompting to Zia's ICR

        A couple of months ago, we upgraded our in-house AI image detection and validation tool, Zia Vision, with intelligent character recognition (ICR). By training Zia with sample images, you could create and enrich CRM records with data extracted from standard

      • How to Prevent Users From Skipping LMS Videos in Zoho People

        How to Prevent Users From Skipping LMS Videos in Zoho People Hello Zoho Developers, In this blog, we will quickly look at how you can stop users from skipping or fast-forwarding videos in Zoho People LMS. Zoho People provides a feature called Disable

      • Sent mail sort by date disappeared

        Hello, We used to be able to sort the emails by date in the sent folder, but this feature has recently disappeared. Can we bring it back?

      • Sync desktop folders instantly with WorkDrive TrueSync (Beta)

        Keeping your important files backed up and accessible has never been easier! With WorkDrive desktop app (TrueSync), you can now automatically sync specific desktop folders to WorkDrive Web, ensuring seamless, real-time updates across devices. Important:

      • [Integration Edition] Deluge Learning Series – Custom API with Deluge | November 2025

        We’re excited to conclude this four-month Integration Edition of the Deluge Learning Series: Session 1 – Integrating Zoho Apps with Deluge Using Built-In Integration Tasks Session 2 – Integrating Zoho Apps with Deluge Using invokeURL and invokeAPI Session

      • Customize portal email template

        Can i fetch only first name of the user in portal email template instead of the below code Hi ${User.FULL_NAME}

      • Important update: Enhanced security measures for account operations in Zoho Cliq

        Greetings from the Zoho Cliq team! We’d like to share an important security update that has an influence on some admin actions such as password reset, MFA reset, and MFA backup code generation. What’s changing? With our latest security enhancements, these

      • Automate Backups

        This is a feature request. Consider adding an auto backup feature. Where when you turn it on, it will auto backup on the 15-day schedule. For additional consideration, allow for the export of module data via API calls. Thank you for your consideration.

      • Assign multiple departments to multiple helpcenters

        Hi there! I have a reseller company for a software and I'm using Zoho Desk as my helpcenter and ticket management system. The software is great and I would like to make a suggestion! With multi-branding activated, your departments that visible in help

      • Zoho Desk Training

        Hello, We've had Zoho desk for a while now, but we run into issues occasionally, and I was wondering if there was a customer who currently uses it and really enjoys the functionality, that would be wiling to chat with us?

      • Tips for Organizing Workflows and Improving Team Coordination in Zoho

        Hi everyone, I’m looking for some general advice on how different teams are organizing their daily work within Zoho’s apps. Our team recently expanded, and we’re trying to streamline how tasks, discussions, and documents are shared so everything stays

      • Batch/lot # and Storage bin location

        Hi I want to ask for a feature on Zoho inventory I own a warehouse and I've gone through different management software solutions with no luck until I found Zoho, it has been a game changer for my business with up to the minute information, I'm extremely happy with it. It's almost perfect. And I say Almost because the only thing missing for me (and I'm sure I'm not alone) is the need of being able to identify the lot number of my inventory and where it is located in the warehouse. Due to the nature

      • Prevent user from viewing all records?

        I have a report that is meant to be used by vendors to view only the records that are assigned to them. All the vendor information is stored in a separate application, so I need to call a function to get the current user's ID (not the zoho user ID). The report settings criteria doesn't support using function calls, so instead I'm embedding the report in an html page like this: if (thisapp.Global.CurrentUserIs("Vendor")) {       personID = common.getLoggedInPersonID();       query = "Assigned_Vendor.ID="

      • Series Label in the Legend

        My legend reads 'Series 1' and 'Series 2'. From everything I read online, Zoho is supposed to change the data names if it's formatted correctly. I have the proper labels on the top of the columns and the right range selected. I assume it's something in

      • Zoho Site pages not displaying in iframes

        I simply want to show a Zoho Site page inside an iframe on another non Zoho website. When testing this across many browsers, the iframe content simply does not appear. IE reports that the host does not allow their content to be displayed in iframes. Very disappointing. Is there a way around this please? Here is the URL of the page I would like to appear in an iframe. http://ips-properties-to-rent.zohosites.com

      • Issue with Creator's IF logic

        Hi, I found the following code produces unexpected results: if(-1.0 < 0.0000000) {       info "True"; } else {       info "False"; } if(-1.0 < 0.000000) {       info "True"; } else {       info "False"; } The output returned is: False True However, the

      • Zoho Inventory as connector in Zoho Creator

        Hello, It doesn't appear that Zoho Inventory is one of the many built in connectors in Zoho Creator? I see that there are non-Zoho inventory applications that have built in connectors such as Cin7, which leads me to believe that I'm missing something

      • Send Zoho Forms Link using Zoho CRM Email Templates

        I have set up Zoho Forms and CRM integration to pre-populate data from Zoho CRM to Zoho Forms. The setup is working fine. I have also created an email template in the Zoho CRM deals module to send Zoho forms links. So when I send an email using that template

      • Can I execute two 'functions' when completing a mail merge from CRM?

        Hi, I have set up a mail merge from CRM Deals to a template. I want a copy of this to be saved in Workdrive, and then a copy also saved back into the deal record from which the merge occurred. I can do both independent of each other, and managed to get

      • My go to On Load Client Script - Fast, efficient, and works for ALL profiles; Hides everything except initial fields

        This is my on Load client script that I use for Create pages. I use a modified version for Edit and Display pages which you can create yourself using the same basic structure that I will give you below. First up, the script. Below that will be an explanation

      • CRM x WorkDrive: File storage for new CRM signups is now powered by WorkDrive

        Availability Editions: All DCs: All Release plan: Released for new signups in all DCs. It will be enabled for existing users in a phased manner in the upcoming months. Help documentation: Documents in Zoho CRM Manage folders in Documents tab Manage files

      • Zoho Books Finance Modules Not Accessible in Zoho CRM Mobile App

        We have integrated Zoho CRM with Zoho Books using the Zoho Finance Suite integration. In the CRM web version, we can see the Finance modules (Estimates/Quotes, Invoices, Sales Orders, Items, Payments) and are able to create invoices and quotes directly

      • Custom Search using HTM+CSS Snippet

        Suppose I wanted to create my own list view using HTML and CSS snippets inside a Page with a custom search input at the top of the list (not the Search snippet). Without Javascript, is there a way to retrieve a user's entry from that search input and

      • Cliq iOS can't see shared screen

        Hello, I had this morning a video call with a colleague. She is using Cliq Desktop MacOS and wanted to share her screen with me. I'm on iPad. I noticed, while she shared her screen, I could only see her video, but not the shared screen... Does Cliq iOS is able to display shared screen, or is it somewhere else to be found ? Regards

      • Mass Update of Lookup Fields not possible

        Hello List I've created a custom field for Leads and Contacts 'Current Campaign'. This is very Handy as I can filter leads and then related them to a campaign. Everything ready, but then I realized that mass update doesn't work for lookup fields... a

      • Zoho CRM Kiosk Upload Files

        Hello all, We are trying out Kiosks at the moment to see where it can fit best in our business. We are still a bit off in the application but lets say we will sort this out. My question is the following - when I create a Kiosk I can add "File Upload"

      • Double opt-in notifications and customizable confirmation messages for your webforms

        Dear CRM Community, We are excited to announce a major upgrade to our Webforms feature. You can now customize the confirmation message shown to your users who double opt-in from your webform and also customize your confirmation emails when they submit

      • Has Anyone successfully integrated Zoho and Sage Intact?

        Hey all, We’re evaluating Zoho One + Sage Intacct and I’m trying to connect with anyone who has actually implemented the two together.Specifically, I’d love to know: -- Which functions you kept in Zoho vs. Intacct (e.g., Product Catalog, AR/AP, invoicing,

      • Introducing Image Upload Field

        Hello everyone, In this post we will discuss about the benefits and usage of the Image upload field. The field is available for standard and custom modules.  Usage: This field can be used to upload a gallery of images to a record and share the record with peers or customers. The record can be made accessible to users outside of Zoho CRM via Portals, where they can upload the necessary images. Preview, editing, and deleting images: The uploaded images can be directly edited and saved from the record

      • Trigger a Workflow Function if an Attachment (Related List) has been added

        Hello, I have a Case Module with a related list which is Attachment. I want to trigger a workflow if I added an attachment. I've seen some topics about this in zoho community that was posted few months ago and based on the answers, there is no trigger

      • Next Page