Important: Changes to Microsoft (Outlook) Bulk Email Sending

Important: Changes to Microsoft (Outlook) Bulk Email Sending

Dear Marketers,

We want to bring your attention to an important upcoming change announced by Microsoft (Outlook) that will impact users sending bulk emails to Outlook.com, Hotmail.com, and other Microsoft-hosted inboxes. This update focuses on strengthening email authentication to improve inbox security and reduce spam. These measures will help reduce spoofing, phishing, and spam activity, empowering legitimate senders with stronger brand protection and better deliverability.

Microsoft's New Requirements for Bulk Senders:

Microsoft is introducing new requirements for domains sending more than 5,000 emails per day. Starting May 5th, 2025, Outlook will begin enforcing stricter email authentication standards.

Key Changes to Be Aware Of:

  • Mandatory SPF (Sender Policy Framework): Your sending domain must pass SPF authentication. Ensure your domain's DNS record accurately lists all authorized IP addresses and hosts that send emails on your behalf.

  • Mandatory DKIM (DomainKeys Identified Mail): Your emails must pass DKIM authentication. This validates the integrity and authenticity of your emails.

  • Mandatory DMARC (Domain-based Message Authentication, Reporting, and Conformance): Your domain must have a DMARC record in place, and alignment with either SPF or DKIM (preferably both for optimal deliverability).

Impact on Non-Compliant Senders:

  • Initial Routing to Junk: After May 5th, 2025, emails from high-volume senders that do not comply with these authentication requirements will initially be routed to the Junk folder.

  • Future Rejection: Microsoft has stated that in the future, non-compliant emails will be rejected entirely to further protect their users.

Recommendations for Zoho Marketing Automation Users:

As users of Zoho Marketing Automation, especially if you send bulk email campaigns that might exceed 5,000 emails per day to Microsoft-hosted inboxes, it's crucial to take the following steps now to ensure your email deliverability is not affected:

  • Review Your DNS Records: Audit your SPF, DKIM, and DMARC records for the domains you use to send emails through Zoho Marketing Automation. Verify that they are correctly configured and accurately reflect your sending infrastructure.

  • Ensure SPF Passes: Confirm that your SPF record includes all necessary sending sources for Zoho Marketing Automation.

  • Ensure DKIM is Implemented: Verify that DKIM signing is properly set up for your sending domains within Zoho Marketing Automation.

  • Implement DMARC: If you haven't already, implement a DMARC record in your DNS. Starting with p=none allows you to monitor your email authentication results before moving to stricter policies.

  • Configure Custom Return PathThis dedicated custom return-path address allows you to receive detailed notifications about email bounces, enabling you to analyze delivery issues and proactively manage your email lists.

  • Follow Email Hygiene Best Practices: While not strictly mandatory yet, adopting the following practices will further enhance your deliverability and sender reputation:

    • Use compliant and valid "From" and "Reply-To" addresses.

    • Include functional and easily accessible unsubscribe links.

    • Maintain clean email lists and manage bounces effectively.

    • Practice transparent mailing practices with clear subject lines and proper consent.

Next Steps for You:

  1. Prepare Now: Review and update your SPF, DKIM, and DMARC records immediately.

  2. Help Resources: If you need assistance with setting up SPF, DKIM, or DMARC, refer to Zoho Marketing Automation's help documentation.

This update from Microsoft underscores the increasing importance of proper email authentication for ensuring reliable email delivery. By taking proactive steps now, you can safeguard your email campaigns and maintain strong deliverability to Outlook inboxes.

We will continue to monitor this situation and provide any further updates or guidance relevant to using Zoho Marketing Automation. Keep an eye on our community forums and announcements.

Notes
It's important to note that Zoho Marketing Automation will not impose restrictions on email sending; however, users are strongly encouraged to proactively implement these authentication measures on their end to maximize deliverability

If you have any questions or concerns regarding this, please don't hesitate to reach out to our support@zohomarketingautomation.com or engage in the community forums.

Happy Marketing!
The Zoho Marketing Automation Team

    • Sticky Posts

    • Marketer’s Space - Automating CRM Actions with Journeys – Part 2

      Hello marketers! Welcome back to another post in Marketer’s Space. In our previous post, we explored how CRM actions in Journeys help marketing and sales teams work together by nurturing CRM leads and pushing only engaged prospects back to sales. If you
    • Introducing automation and utility conversations in WhatsApp marketing

      We’re excited to announce the addition of two new features to our WhatsApp integration: Automation and Utility conversations. These enhancements will allow you to streamline your marketing efforts and engage with your customers more effectively by automating
    • Tip of the week 02 - The art of 'seeing' your leads

      What's the last page that your lead visited before signing up for your brand? What was the page that first convinced your lead to explore more about you? Where are your leads coming in from? Well, these are some perennial questions today's marketers live upon. And, knowing the answers to these questions is crucial, considering the vitality of leads in every business. In the journey of finding lead opportunities, it's important to understand that every detail about a lead is useful. While the channels
    • Zoho Marketing Automation Update: Topics, Contacts, and List Management

      At Zoho Marketing Automation, our highest priority is making it easier for you to use our product to accomplish your business goals. With that in mind, we are updating three of our pivotal features: Topic, Contacts, and List Management.   These existing
    • Important: Zoho MarketingHub is now Zoho Marketing Automation

      Hello Everyone,   We hope you all are doing well. We'd like to notify you that we have rebranded Zoho MarketingHub to Zoho Marketing Automation. We'll discontinue using the term "MarketingHub" from May 26, 2021. However, there will be no changes in the

    Nederlandse Hulpbronnen


      • Recent Topics

      • Round robin

        Hi, I'm trying to set up a round robin to automatically distribute tickets between agents in my team but only those tickets that are not otherwise distributed by other workflows or direct assignments. Is that possible and if so which criteria should I
      • Time Entry Notifications

        Hi All - I have support staff who place notes of their work in the time entry section of Zoho Desk. Is there a specific workflow or setting I need to enable to have the ticket holder updated via email when an entry is saved?
      • Change text in help desk

        Hi, Please let me know how can i change the this text, see screenshot.
      • Customer happiness customisation

        Hi, I was wondering if it's possible to somehow customise to whom and when customer happiness request is sent? Can you enable it only for selected tickets for example based on workflow or any other criteria (customer name, tag or anything else)? Also
      • No Zoho Support Response in Months

        I want to say that I love Zoho FSM, Books, and CRM, but the support is scary bad. About 2-3 months ago, I emailed Zoho FSM support with two specific issues I needed help with, and I have still not received one single response. I also submitted a support
      • Has anyone built a custom AI support agent inside Zoho (SalesIQ/Zobot)?

        Hi all, I’ve been experimenting with building my own AI support assistant and wanted to see if anyone here has tackled something similar within Zoho. Right now, I’ve set up a Retrieval-Augmented Generation (RAG) pipeline outside of Zoho using FAISS. It
      • Null

        If a result is null how do I make it so that a custom error pops up instead of the default error? Can someone write an example as if I were using the script builder?
      • Format a "return" message

        Good day, Is there a way to format the message of the "return" function in CRM deluge script?
      • Change Last Name to not required in Leads

        I would like to upload 500 target companies as leads but I don't yet have contact people for them. Can you enable the option for me to turn this requirement off to need a Second Name? Moderation update (10-Jun-23): As we explore potential solutions for
      • Having Trouble Opening The Candidate Portal

        Recently am having trouble opening the Candidate Portal. It keeps loading but cannot display any widgets. Tried Safari, Chrome and Edge. Non of them work. Please solve the problem ASAP.
      • Tip of the Week - Spot Risky Sales with Conditional Formatting

        In Zoho Analytics, small tweaks can lead to big insights. One such feature is Conditional formatting based on other columns, your key to instantly spotting where sales success is overshadowed by product returns. Our tip this week shows you how to apply
      • How do I duplicate / copy a campaign

        I am evaluation Zoho Campaigns and sent an email to one of my personal email accounts from Zoho Campaigns.  It went into my junk file in Hotmail. I want to duplicate that same (1-page) campaign and send it to another of my personal accounts to try to
      • For a Bill, can "Pay via Check" - Can we also "Pay via Check" when documenting refund for payment?

        We really like when we have a Bill in Zoho Books that we can record payment by selecting "Pay via Check" and that will cut the check for us from Zoho Books. However, when we have to write checks as a result of invoice overpayment, we can not select "Pay
      • Creator Change History: Ways to improve

        Hi Everyone, Recently been working in developing this change history(an idea from Zoho Forms) - unlike forms that you can this with a click but using Creator, we can use "old" keyword. The concept I come up with is to put the result in a table however,
      • Suitability of Zoho One (Single User License) for Multi-State GST Compliance & Cost Analysis

        Hello Zoho Team, I am an e-commerce business owner selling on platforms like Amazon, Flipkart, and Meesho, and I'm currently using their fulfillment warehouses. I have two GSTIN registrations and am planning to register for an additional 2-3 to expand
      • add employees and customiz

        I want a Zoho software to track employees record. I logged in a demo so now I tried adding employee, first thing when I click on add employee it takes me to a page where it says add user maximum 10 users, my first doubt why users I don't want employees
      • Inactive User Auto Response

        We use Zoho One, and we have a couple employees that are no longer with us, but people are still attempting to email them. I'd like an autoresponder to let them no the person is no longer here, and how they can reach us going forward. I saw a similar
      • Zoho People Attendance Module - Split Shifts

        Hello, Our business employs a number of college students who often split their workdays between work hours and class schedules, resulting in split shifts. For example: Employee 1 works 9am to 11:30am and then leaves for class, returning to work at 3pm
      • Zoho One subscription

        we have got Zoho CRM for 3 users and we paid for the app , and we have still 9 months to go , but if we join Zoho one , does it mean the payment for that subscription would be a waste? Please help. Thanks.
      • How Zoho CRM Can Enhance Your Faucets Accessories Business Operations?

        In today's competitive market, having a reliable CRM system is crucial for managing customer relationships and streamlining business operations. For businesses in the faucets accessories niche, Zoho CRM offers powerful tools to help manage everything
      • Dashboard

        I’m currently working on a project using the Zoho IoT Cloud with an ESP32 and MQTT. I’ve successfully connected the ESP32 to Wi-Fi and MQTT, and the data from the ESP32 is displayed in the telemetry section of the cloud. However, when I try to create
      • Can i connect 2 instagram accounts to 1 brand?

        Can i connect 2 instagram accounts to 1 brand? Or Do i need to create 2 brands for that? also under what subscription package will this apply?
      • Zoho Forms - Improved Sub-Forms

        Hi Forms team, I'm helping a client move from JotForms to Zoho Forms and I've found another opportunity for improvement. In the below screenshot, JotForm left and Zoho Forms right. The Zoho Forms Sub-Form is quite a poor visually. There is no way to make
      • What's New in Zoho Billing | Q3 2025

        Hello everyone, We are excited to share the latest set of updates and enhancements made to Zoho Billing in Q3 2025. From the latest GST updates to multi-level discounting, Zia-powered report summaries, and customizable web forms, these updates are designed
      • How to Delete Personal Account Linked with My Mobile Number in past or by someone else

        How to Delete Account Created with My Mobile Number in past or by someone else This is creating issues in making or sync with my credentials mobile and email address..
      • WhatsApp Business Calling API

        Dear Zoho SalesIQ Team, I would like to request a feature that allows users to call WhatsApp numbers directly via Zoho SalesIQ. This integration would enable sending and receiving calls to and from WhatsApp numbers over the internet, without the need
      • Does Zoho Learn integrate with Zoho Connect,People,Workdrive,Project,Desk?

        Can we propose Zoho LEarn as a centralised Knowledge Portal tool that can get synched with the other Zoho products and serve as a central Knowledge repository?
      • Marketer's Space - Going beyond basics: Smarter ecommerce marketing with Zoho Campaigns

        Hello Marketers, Welcome back to this week's Marketer's Space. In the last post, we discussed the basics of email marketing and how to get started with email marketing in ecommerce. In this part, we'll dive much deeper into some other advanced features
      • Connecting two modules - phone number

        Hi, I’d like some guidance on setting up an automation in Zoho CRM that links records between the Leads module and a custom module called Customer_Records whenever the phone numbers match. Here’s what I’m trying to achieve: When a new Lead is created
      • Zoho Marketing Automation 2.0 - Landing Page function not working

        Dear Zoho Team, I am working on implementing Zoho Marketing Automation 2.0, and am now looking into the section "Lead Generation". If I open the "Landing Pages" section, I immediately get an Error code: Error: internal error occurred. Can you help me
      • Unable to use Sign "You have entereed some invalid characters"

        Unable to use Sign "You have entered some invalid characters" I do not see any invalid characters. The text in "Leave a Note" is plain text which I entered directly into the field. See attached screenshot
      • cannot login from outlook on mobile

        Hi there,   I tried to set up my email accounts on my iphone using outlook, but it always return email address and password error. Please find the attachment for the screenshot. I am pretty sure that I typed in the correct email address and password and the imap has been enabled from zoho admin account. I can configure the email address on iphone default mail service as well as outlook on pc, the problem only occurs on the outlook app on mobile. I do need to use this app instead of the iphone default
      • Elevate your CX delivery using CommandCenter 2.0: Simplified builder; seamless orchestration

        Most businesses want to create memorable customer experiences—but they often find it hard to keep them smooth, especially as they grow. To achieve a state of flow across their processes, teams often stitch together a series of automations using Workflow
      • Messages not displayed from personal LinkedIn profile

        Hello. I connected both our company profile and my personal profile to Zoho social. I do see all messages from our company page but none from my private page. not even the profile is being added on top to to switch between company or private profile,
      • "Performed changes in the query is not allowed due to following reason" when adding columns or reordering data

        I'm trying to make changes to a query but every time i try to save it i get this error message. I'm not touching the data it's flagging. All I've tried to do is reorder a couple of fields and add a new one. Why won't it let me do this? It's a core query
      • Onboard new users easily with native screen recording in Zoho Projects Plus

        Communication involving both visual and audio elements tends to capture more interest among the audience. Whenever we onboard new employees to the organization, the task of engaging them in the induction sessions, and keeping the spark going in their
      • Request to Add Support for PDF Templates and More Flexibility in Email Editor

        Hi Zoho Campaigns Team, I hope you're doing well. I wanted to share some feedback and request a few improvements in the Email Template feature of Zoho Campaigns. Right now, we can create email templates using the HTML editor, which is helpful. But we’re
      • Can you stop Custom View Cadences from un-enrolling leads?

        I'm testing Cadences for lead nurture. I have set un-enroll properties to trigger on email bounce/unsubscribe, and do NOT have a view criteria un-enroll trigger. However, help documents say that emails are automatically un-enrolled from a Cadence when
      • Zoho Desk Android and iOS app update: Agent detail overview

        Hello everyone! We’ve introduced agent detail overview on the Zoho Desk Android and iOS app update. With this feature, you can get a complete view of agent’s tickets, response times, logged hours (for both tickets and activities), customer happiness ratings
      • Blog Widget: Show recent blog posts on my homepage

        Hey there I am using the Zoho Sites Blog feature. On my homepage, on the bottom I'd like to have a featured content section where I show some of my blog posts (selected, most recent, filtered by category and so on...). It would be nice to have a blog
      • Next Page