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

 

    • Sticky Posts

    • 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
    • Tip of the week 15 - Add subscription-preferences option. Drive more engagement.

      If crafting content for emails, getting creatives done, and running email campaigns is your love, then unsubscribes are the heartbreakers.  You can save your emails from being unsubscribed/trashed by adding a proper subscription-preferences option in your emails (works best at the time of signup). Giving subscribers the option to choose what they want to receive from you and decide how often (frequency of the emails) your emails should hit their inboxes will increase the reach of your campaigns manifolds. 
    • Recent Topics

    • how to get all the records in the custom View more than 200 records , Without using the page Concept

      how to get all the records in the custom View more than 200 records , Without giveing page as default in the Loop Concept Pls help how We can Achive this void schedule.Lead_Attempt_To_contact_schedule_10_30() { pages = {1,2}; for each pg in pages { query_map
    • The way that Users can view the ticket

      I have created users. What I would like to achieve is the following: All users under the same company account should be able to view each other’s tickets.
    • Zoho UAE SMS/WHATSAPP

      Hello everyone, so I have a question as regards DC and their impact on automation, integration and app usage. For example I am working with a UAE clientniw but each time I tried to connect their WhatsApp and sms then automate their process I tend to receive
    • Looking to Flag or Tag contacts/ accounts on Zoho Desk?

      I am looking for a way to flag certain accounts and make it obvious on the views pages. So for example if a has a certain package or needs extra attention it is clear before even clicking on the ticket. This could be via adding a tag or flag onto an account,
    • setting date-time field from string

      hello everyone, i hope someone could help me. i have a date-time field in a form that i want to fill in from two separate fields of date, and time. i need to combine the two fields to a one date-time field but can make it work. i tried to convert the
    • Calendars and CRM Contacts

      I'm finding having multiple calendars in Zoho One so confusing. I have a few questions so I can get this straight. We have a meeting room that we have set up as a resource in Calendar. Can this be set up in Bookings and the CRM Calendar? Using Zoho Calendar,
    • Announcing new features in Trident for Mac (v1.23.0)

      Hello everyone! Trident for macOS (v.1.23.0) is here with interesting features and thoughtful enhancements to elevate your workplace communication and productivity. Here's a quick look at what's new. Record your meetings. You can now record audio and
    • Applying a record template

      Hi all, I can't figure this out. I hope you can help. The scenario: We have learners who have to complete a 'digital' journal with tasks in order to qualify. Those tasks, once completed, need a final signature from their 'Mentor', which will trigger their
    • Quickbooks invoice with Zoho Creator

      Is it possible to push data from Zoho Creator directly to an invoice on QuickBooks? If so, where can I find information on how to do this?
    • Help: Capture full page URL in hidden field when same Zoho Form is embedded on multiple pages (iframe)

      Hi all, Goal Use one Zoho Form across multiple pages and record the exact page URL (incl. subdomain + path + hash) where the user submitted it. Example pages: https://www.example.com/cargo/ https://www.example.com/cargo/containers/#contact https://cargo.example.com/auto/
    • Automatically Populate fields - HELP!

      There have been many discussions on this but I still can't seem to get it to work for me. I am trying to create a lookup field and have other fields automatically populate. Based on the instructions in the Help Center, I should be using the "on user input". It's just not working, here is the layout...   Both forms are in the same application. Current form is called Add Note, form to fetch records from is called Add Client. Lookup field is called Select_Client_ID related field in fetch form is called
    • Push notifications to portal users

      Hi all, it is possible to send push notifications to portal users?
    • Rename the attachment from record template pdf in the sendmail deluge script

      Hello Zoho, I urgently need a feature to rename record templates that I send via the sendmail feature. The program I created sends emails to clients with an invoices that have been created in the invoice database. If the user selects 3 invoice numbers,
    • Alt Text On Multiple Images

      I'm using Zoho Social to post to a charity website. Often the posts have multiple images, but it seems there is only one field for Alt Text. Does that mean I can only include it for the first image? Or is there a way to add alt text for all the imag
    • [SOLVED] Getting 401 when trying to download ticket attachment via API

      I'm able to use the API just fine to access ticket content. But I cannot download ticket attachment, keep getting 401 Client Error. Example: https://desk.zoho.com.au/api/v1/tickets/{ticket_id}/attachments/{attachment_id}/content?orgId={org_id} For headers,
    • Zoho project – Workdrive integration.

      Hello everyone, I was wondering something, we did the Zoho projects integration with Zoho Workdrive but nowhere during this integration we could set the location of the folders that would be automatically created in Workdrive. As I understand it, it creates
    • Scriptを埋め込みたくてOn User Inputを探しているのですが・・・

      編集モードで、Scriptを埋め込みたい項目を選択し、「項目のプロパティ」パネルで、その下のほうに「フィールドアクション(Field Actions)」という見出しがあると聞いたのですが、そもそも、それが見つかりません。そのために、On User Inputなどのイベントが選べません。 画面の英語を日本語に訳しているためにわけわからん状態になっているのかも知れませんが、わかる方、いらっしゃいますか?
    • Problem with cloud query exceeded

      When making a call I get this error, It is associated with a function in node that calls external APIs This is the code //tokenConsultar = thisapp.ObtenerToken(); //input.token = tokenConsultar.get("output").toMap().get("token");
    • Showing Total of Funnel Chart Legend (With Values) Items

      Hi, We are using the funnel type chart for displaying our zCRM sales pipeline stages and associated sum of deals in each stage.  We have configured the legend to show the associated value (Deal Amount (Sum)) for each stage adjacent to the legend items (Stages). Is there a way to display the total of the values in the same chart?  For example, at the bottom of the legend or maybe as a #merge placeholder in the legend title?
    • How to Convert VCF Contacts to CSV using Excel

      Many users switch from traditional address books to digital formats like vCard and CSV. These formats allow users to easily manage their contacts. However, a difficulty comes when you need to transfer your contact information to another application or
    • Field authorization for Linking module in Zoho CRM portal

      Hi guys! Currently building a customer portal for one of my clients, and I ran into a bit of a roadblock while using a multi-select lookup field. The issue is that there is no way to hide or define access in the linking module created by this multi-select
    • Kaizen #63 - Layout Rules in Zoho CRM

      Hello and welcome to another week of Kaizen! This week, we will be discussing Layout Rules in Zoho CRM. If you need to modify the layout of a module based on user inputs, or to show or hide sections based on the value of a specific field, we have got
    • Zoho CRM Portals - allow access per account

      Hello all, I am trying to set up a portal for our customer but I seem to be hitting an obstacle and I am not sure if it is my problem or a limitation in the software. So basically the way I understand the portal Contact Email > Each Record or Related
    • Android - Writer não acentua em Português com teclado bluetooth

      Gosto muito do Zoho, tanto o Note quando o Writer. Infelizmente, o Writer sofre de um problema sério: ao usar um teclado bluetooth, forma mais cômoda de lidar com um processador de texto, os acentos (todos!) da Língua Portuguesa não são aceitos. Todos
    • Set File Upload fields as mandatory

      Currently the CRM for some reason lacks the ability to set a file upload field as mandatory So we have an issue We have a requirement that before a Deal stage is set as Deal is Won the member needs to upload a file Now for some weird reason in Zoho I
    • Editing HTML in Zoho CRM Email Template

      I am trying to create a template within the CRM email option, but need to be able to use custom HTML. There does not seem to be a way to do so.
    • Ability to CC on a mass email

      Ability to CC someone on a mass email.
    • How to make attachments mandatory

      I want the user to be unable to mark an opportunity as Closed – Won if it doesn’t have any attachments. I’ve already tried client scripts and functions, but nothing worked.
    • SLA Ticket Report

      From data to decisions: A deep dive into ticketing system reports Service level agreement (SLA) ticket reports in a help desk system are crucial for ensuring that services are delivered according to established commitments. They help maintain accountability
    • Zoho Backstage - PCI Compliance / Web Security

      I have a couple of questions related to Backstage and payment processing.... 1. my purchasing division is not giving approval to use Backstage yet because of some security issues. In order for us to take payments via a payment gateway like Authorize.net
    • Zoho Tables August 2025 Update: Faster and Smoother

      We’ve been working behind the scenes to make Zoho Tables faster, lighter, and more reliable. Here are the highlights: Faster Response Times Optimised the way responses are generated. Reduced memory consumption by 20–25%, leading to smoother performance
    • Video Upload from app says "unsupported aspect ratio" but is verified to be correct.

      I and my social media person are experiencing a problem where Social will not accept video uploads to Instagram. The error we receive is "unsupported aspect ratio" but looking directly at the file in question we see that the width and ratio both match
    • Disposable Email Addresses

      Dear zMail Team, Can you also bring out a few disposable email addresses for each accounts? That way occasional registrations and imminent spam from them can be largely solved right? ---- Deepak Vasudevan http://thamizhththendral.blogspot.com/
    • Zoho sheet - Zoho expense

      I want to schedule to create an expense using Zoho Sheet and flow. That is the EMI that I pay on a particular date to the bank and should be itemised, like principal and interest on the loan. Can someone help me in this regard??
    • Ability to configure a schedule/shift for each user and/or crew in Zoho FSM

      Hello, In our team of Field Agents, we have different shifts. Some field agent always work from 7:00 AM to 4:00 PM while others work the evening shift like 4:00 PM to 11:00 PM. Sometime shift are on weekdays only or on weekend. It would be great to be
    • Free webinar: Streamlining customer service paperwork with the Zoho Sign extension for Zoho Desk

      Hello Everyone! Have you been wondering about bridging the gap between digitised customer service and business paperwork? Join our free webinar to learn how you can do this by connecting Zoho Sign, our digital signature app, with Zoho Desk, our online
    • Zoho Books | Product updates | July 2025

      Hello users, We’ve rolled out new features and enhancements in Zoho Books. From plan-based trials to the option to mark PDF templates as inactive, explore the updates designed to enhance your bookkeeping experience. Introducing Plan Based Trials in Zoho
    • Mail Search should allow grouping by conversation like Gmail.

      Having switched from gmail I have found the search function hard to use. Mostly because mail is not grouped by conversation in search. If I search for a word when looking for a conversation had with someone then sometimes 10 emails will come up from the
    • Improve Zoho Learn updated article notifications

      I noticed today while updating an article, that the notification users get says "[User Name] has published article [Article Name]..." My feedback to the product team is that it would be really helpful for an end user, if the system notification differentiated
    • Safari Support

      Safari, the world's second largest browser, zoho desk does not officially or fully support. That needs to change.
    • Next Page