Important: Microsoft Outlook Bulk Email Updates

Important: Microsoft Outlook Bulk Email Updates

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 Campaigns Users:

As users of Zoho Campaigns, 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 Campaigns. 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 Campaigns.

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

  • 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 Path: This 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 Campaigns'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 Campaigns. Keep an eye on our community forums and announcements.

It's important to note that Zoho Campaigns 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@zohocampaigns.com or engage in the community forums.

Happy Marketing!
Zoho Campaigns

 


      Zoho Campaigns Resources


        • Desk Community Learning Series


        • Digest


        • Functions


        • Meetups


        • Kbase


        • Resources


        • Glossary


        • Desk Marketplace


        • MVP Corner


        • Word of the Day


        • Ask the Experts


          • Sticky Posts

          • Marketer's Space: Proven tips to improve open rates – Part II

            Hello Marketers! Welcome back to another post in Marketer's Space! We're continuing from where we left off a fortnight ago. We ended the previous post discussing the subject line, and we'll continue from there. Let's dive right in. Pre-header Pre-header
          • Tip of the week 03 - Sending emails in batches

            Today's marketers not only want their email marketing to be efficient, but also smart. For an email campaign, you may think you have all the essential elements for lead conversion—a big mailing list, an attractive template design, and the most-engaging message content, but after hitting the ‘send’ button, you may not get the expected conversions. Wondering why? Here’s one of the major reasons. Many marketers miss out on sending the email campaign the right way. Did you know that you should not be
          • Tip of the week 04 - Know about your recipients' 'prime open time.'

            In today's market, the importance of customer behavior is astounding, with a vast amount of research and resources going into finding how customers make decisions. The process of persuading your customers to open your email and click on your call-to-action becomes easy when you understand the psychology behind their behavioral traits. Time to turn into a psychologist! Let's get to the basics—you want your emails to resonate well with your recipients. So, what's the primary thing involved here? It's
          • Zoho Campaigns Expert Diaries on SoundCloud, Spotify, Apple Podcasts, and YouTube

            Hi email champs,  As email marketers, we find great lessons in each other's works—be it the subject lines that worked good, the design that was received well, or the CTA that had the maximum clicks. Email marketing encompasses a wide variety of topics spanning everything from creation and design to development and deliverability.  Here's when we from the Zoho Campaigns team found the need to build an email marketing community comprising of seasoned marketers and email geeks who can help each other
          • Email Deliverability Tip #3: Seal the deal with the preheader

            In the last post, we learned about the subject line. Today we'll be learning about the preheader. A preheader is the short text that follows the subject line in an email. The preheader is designed to hint at what your email message is all about. A good preheader should act as a second subject line and convince your contacts to open the email. Now, let's learn the best way to craft a preheader. Your subject line and preheader should work together and accurately convey the gist of your email. Keep

          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

                                  • Warehouse fast processing

                                    Hey guys, would anyone be interested in something like the attached image ? If there's any interest I'd be willing to develop it further for others to use, it's much faster than using Zohos native solutions, it can part pack, pack in full, part ship,
                                  • Can't change form's original name in URL

                                    Hi all, I have been duplicating + editing forms for jobs regarding the same department to maintain formatting + styling. The issue I've not run into is because I've duplicated it from an existing form, the URL doesn't seem to want to update with the new
                                  • Start/Stop Timmer in Chrome Extension

                                    The chrome extension is great and allows you to do allot however one of the most common things employees working on projects need to do is track their time. Having an easy start/stop timer to track time would be great.
                                  • Invalid collection string

                                    I haven't changed anything in one of my functions. I'm trying to run it manually and suddenly "Invalid collection string" appears. My code has 6 lines and the error says that the error is on 7th line. Why? What does this error mean? Nothing has been changed
                                  • Zoho Directory 2025: New Features | Security Enhancements | Enriched UI

                                    Hello everyone, Greetings from the Zoho Directory team! 2025 has been a highly successful year for Zoho Directory. We are delighted to introduce a fresh set of features, an enriched UI, and major product enhancements. These updates aim to deliver a smoother
                                  • Bulk Schedule for Posting TikTok

                                    Hallo, We have a client whose business is a social media agency specifically TikTok. Currently they are handling 30 TikTok accounts from. I think zoho Social can handle it with Agency License + with Add on 10 Brands. Their concern is related to posting
                                  • zoho people 5 report

                                    How do I customize my report in Zoho People Report? I understand that I can get the results of multi-table queries through SQL join statements, but I don't know the relationship between each table. I tried to create a report using Attendance User Report
                                  • Leave Report Emailed Weekly

                                    I am wondering if someone knows how to have a report generated either weekly or monthly or both for department heads and ownership of upcoming employee leave. For instance, it would be nice to get an emailed report on Friday for the upcoming week of who
                                  • Ability to Edit YouTube Video Title, Description & Thumbnail After Publishing

                                    Hi Zoho Social Team, How are you? We would like to request an enhancement to Zoho Social that enables users to edit YouTube video details after the video has already been published. Your team confirmed that while Zoho Social currently allows editing the
                                  • Zoho Flow Decision Continuing Despite Not Meeting Conditions

                                    I have a picklist field called Lead Status in the leads module, with the following lead Statuses: New Lead Attempted Contact - 1 Attempted Contact - 2 Attempted Contact - 3 Attempted Contact - 4 Attempted Contact - 5 Attempted Contact - 6 Attempted Contact
                                  • Add RTL and Hebrew Support for Candidate Portal (and Other Zoho Recruit Portals)

                                    Dear Zoho Recruit Team, I hope you're doing well. We would like to request the ability to set the Candidate Portal to be Right-to-Left (RTL) and in Hebrew, similar to the existing functionality for the Career Site. Currently, when we set the Career Site
                                  • zoho labels api not working

                                    We're using n8n to automte email reply using zoho api. I'm facing issue with label api. I added the required scopes but its not working. i followed zoho api documentation but didn't work. also, where do i find/how do i create zoho oauth token mentioneeed
                                  • Zoho Books Sandbox environment

                                    Hello. Is there a free sandbox environment for the developers using Zoho Books API? I am working on the Zoho Books add-on and currently not ready to buy a premium service - maybe later when my add-on will start to bring money. Right now I just need a
                                  • Tip #55- Accessibility Controls in Zoho Assist: Exploring Vision Settings- 'Insider Insights'

                                    As we approach the end of the year, it’s a good moment to reflect on how we can make our tools more inclusive and easier to use for everyone. Remote support often involves long hours in front of screens, varied lighting conditions, and users with different
                                  • Zoho Recruit Slow and Freezing on all screens

                                    We have had an issue with Zoho Recruit for weeks being extremely slow and at times freezing.  We have 100 mega internet, and I went into each computer and updated the virtual memory so there is more available.  Also restarted all computers daily.  Still having the issues.  Almost unable to work.
                                  • Credit Management: #2 Configuring Right Payment Terms for Credit Control

                                    Think about the last time you ordered something online and saw that little note at the checkout, "Pay on Delivery" or "Pay later". It's simple, but it actually sets the tone. As a business owner, you know exactly when payment is expected. Now, imagine
                                  • Dependent (Conditional) Fields in Zoho Bookings Forms

                                    Hello Zoho Bookings Team, Greetings, We would like to request the ability to create dependent (conditional) fields in Zoho Bookings registration forms. Current Limitation: There is currently no way to make one field’s available options depend on the value
                                  • Bug Report: Search fails to find existing notes after Evernote import

                                    Hello, I recently migrated from Evernote (~2600 notes across 23 notebooks), but the search functionality is currently broken. The Issue: I can manually browse to a specific note and see it exists. However, when I type the exact or partial title of that
                                  • Marketing Tip #13: Win repeat customers with post-purchase emails

                                    The relationship with your customer doesn’t end after the sale; that’s when it begins. A thoughtful post-purchase message shows customers you appreciate them, keeps your brand top of mind, and can even lead to another sale. You can thank them, ask for
                                  • Zoho Form

                                    I have problem with Zoho Form. One of form i don't received the PDF version. Others okay except this one. W904533
                                  • Create & Update Zoho Vault Passwords via Zoho Flow

                                    Hi Zoho Flow / Zoho Vault Team, We’d like to request an enhancement to the Zoho Vault integration in Zoho Flow. Current Limitation: At the moment, Zoho Flow supports only the following selected Zoho Vault actions, such as: Fetch passwords, Share passwords
                                  • Is Zoho Communityspaces now part of Zoho One?

                                    Is Zoho Communityspaces now part of Zoho One?
                                  • Streams/Shared email doesn't show up in windows trident app. It works fine on MAC. Is there any difference between 2 install ?

                                    I can see streams/share email boxs on my MAC version of trident app but i can't see them in windows version of trident app. Is there any difference between 2 install? I try to find setting but not able to see any setting to add stream/share email boxes.
                                  • Credit Note for Shipped and Fatoora pushed invoices

                                    We have shipped a Sales Order and created an Invoice. The Invoice is also pushed to Fatoora Now we need to create a credit note for the invoice When we try it, it says we need to create a Sales Return in the Zoho Books, we have already created a Sales
                                  • 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
                                  • MCP no longer works with Claude

                                    Anyone else notice Zoho MCP no longer works with Claude? I'm unable to turn this on in the claude chat. When I try to toggle it on, it just does nothing at all. I've tried in incognito, new browsers, etc. - nothing seems to work.
                                  • Custom Related List Inside Zoho Books

                                    Hello, We can create the Related list inside the zoho books by the deluge code, I am sharing the reference code Please have a look may be it will help you. //..........Get Org Details organizationID = organization.get("organization_id"); Recordid = cm_g_a_data.get("module_record_id");
                                  • Features, Feedback and Votes

                                    We’re launching the Feedback Forum for our customers. This is 'THE' place where you can add everything you’d like to see in Zoho Books. If you don't find the specific feature you need, simply add it so others can also vote for it. While we cannot promise
                                  • add zoho account

                                    How to add a zoho mail to previous zoho account? I have two
                                  • There Might Be A Glitch in Determining If A String Represents A URL

                                    I suspect there might be a glitch in determining if a string represents a URL or not. For example, I cannot embed the following URL. Perhaps the exclamation mark or parentheses are the culprit? https://en.wikipedia.org/wiki/How_the_Grinch_Stole_Chri
                                  • Customer Management: #4 Enhance Customer Journey

                                    When Neha started DefineOps, a growing IT support and consulting firm, most of her work was straightforward. A client would sign up for a free version, decide whether the service works for them, and then either continue or discontinue. Billing was simple,
                                  • Pipeline.Company Name field shows up as numbers! [Bigin Developer Console > Component > URL]

                                    Hi there, I am setting up to invoke URL to send infromation zoho bigin > zoho forms with company name pre-fill in the form. however when I use : ${Pipelines.Company Name} field it shows up as a string of number instead of words. Help.
                                  • Marketing Tip #1: Optimize item titles for SEO

                                    Your item title is the first thing both Google and shoppers notice. Instead of a generic “Leather Bag,” go for something detailed like “Handcrafted Leather Laptop Bag – Durable & Stylish.” This helps your items rank better in search results and instantly
                                  • Territory Assignment Issues (Lead to Account + Contact)

                                    1. Lead → Account & Contact Territory Assignment on Conversion A Lead is automatically assigned one or more territories using a workflow and Lead Assignment Rules. This works as expected, and we are able to assign multiple territories to a Lead automatically.
                                  • Marketer's Space: Proven tips to improve open rates – Part II

                                    Hello Marketers! Welcome back to another post in Marketer's Space! We're continuing from where we left off a fortnight ago. We ended the previous post discussing the subject line, and we'll continue from there. Let's dive right in. Pre-header Pre-header
                                  • SQL Table slowed to a crawl

                                    Hi all - I seem to have noticed an update. Now whenever I am typing in the script field for the SQL tables there is a huge delay and it is all very slow. This has never been the case for me in over 5 years of using Analytics - I really hope it's fixed
                                  • Deluge Events/search API works in user environment but not in sandbox – why?

                                    I am creating an Extension for Zoho CRM using Zoho Sigma Platform I’m using the following Deluge code to search Events in Zoho CRM based on Start_DateTime: criteria = "(Start_DateTime:greater_than:2025-12-20T00:00:00+00:00)"; url = "crm/v8/Events/search?criteria="
                                  • Ensure Consistent Service Delivery with Comprehensive Job Sheets

                                    We are elated to announce that one of the most requested features is now live: Job Sheets. They are customizable, reusable forms that serve as a checklist for the services that technicians need to carry out and as a tool for data collection. While on
                                  • What are Zoho Meeting capabilities included in Zoho Workplace Standard?

                                    I am evaluating using Zoho Meeting for my organization, but it is not clear what Zoho Meeting capabilities are already included in Zoho Workplace Standard. - Are meeting recordings included in Workplace Standard? - Can we invite external meeting participants
                                  • Create static subforms in Zoho CRM: streamline data entry with pre-defined values

                                    Last modified on (9 July, 2025): This feature was available in early access and is currently being rolled out to customers in phases. Currently available for users in the the AU, CA, and SA DCs. It will be enabled for the remaining DCs in the next couple
                                  • Next Page