How do I successfully navigate the Microsoft IP warming process and what specific phrases should I use?

Summary

Successfully navigating the Microsoft IP warming process requires a comprehensive approach that encompasses proactive communication, technical setup, strategic sending practices, and continuous monitoring. Initiating contact with Microsoft support using specific phrases like "preemptive mitigation" or "preemptive accommodation" is essential to ensure proper handling due to the internal categorization of these requests. Building a positive IP reputation involves authenticating email using SPF, DKIM, and DMARC, creating engaging content for a targeted audience, and segmenting email lists for a gradual increase in sending volume to engaged subscribers. This controlled ramp-up, guided by a well-defined schedule, is critical to avoid deliverability issues. Regularly monitoring deliverability metrics such as bounce rates, complaint rates, and engagement, in conjunction with utilizing Microsoft's SNDS and JMRP, provides valuable insights for timely adjustments. Understanding the distinct phases of IP warming—setup, warm-up, and ongoing reputation management—allows for targeted actions at each stage. Care must be taken with warming up slowly so as not to damage your reputation.

Key findings

  • Phrase Key: Using 'preemptive mitigation' or 'preemptive accommodation' can lead to a more appropriate internal handling of your request.
  • Authentication Imperative: SPF, DKIM, and DMARC implementation is crucial.
  • Engagement Matters: Engaging content to targeted recipients builds trust.
  • Ramp-Up Gradual: A segmented sending strategy and gradual volume increases are vital.
  • Monitor Constantly: Metrics plus SNDS/JMRP ensure early issue detection.

Key considerations

  • Microsoft Guidelines: Adhere to Microsoft’s bulk sending guidance.
  • Phases of warming: The three phases of warming involve planning, volume control, and reputation tracking.
  • Recipient Segmentation: Prioritize engagement using subscriber segmentation.
  • Consistent Schedule: Maintain consistent sending patterns
  • Patience Required: Warming requires patience; reputations aren't earned overnight.

What email marketers say
10Marketer opinions

Successfully navigating Microsoft's IP warming process involves a multi-faceted approach. Primarily, it requires proactive communication with Microsoft support, specifically requesting "preemptive mitigation" or "preemptive accommodation" to facilitate smoother handling. Crucially, building a positive sender reputation is achieved through sending highly engaging content to targeted audiences, segmenting email lists, and gradually increasing sending volume to engaged subscribers, while avoiding unengaged or old addresses. Consistent with this gradual approach, it is vital to ramp up sending volume on a well-defined schedule. Furthermore, monitoring deliverability metrics like bounce rates, complaint rates, and engagement, coupled with ensuring proper email authentication via SPF, DKIM, and DMARC, is essential. Finally, understanding that the IP warming process is divided into Setup, Warm-up, and Ongoing management phases and knowing what is involved in each.

Key opinions

  • Proactive Communication: Contacting Microsoft support and requesting "preemptive mitigation" or "preemptive accommodation" helps.
  • Engaging Content: Sending highly engaging content to a targeted audience is crucial for building a positive sender reputation.
  • Gradual Volume Increase: Segment email lists and gradually increase sending volume to engaged subscribers.
  • Monitor Metrics: Tracking deliverability metrics (bounce rates, complaints, engagement) is essential for identifying issues.
  • Email Authentication: Ensuring proper email authentication with SPF, DKIM, and DMARC is essential.

Key considerations

  • Recipient Engagement: Focus on engaged subscribers during the initial warming phase.
  • Sending Schedule: Adhere to a well-defined schedule for increasing sending volume to avoid negative impacts.
  • Authentication Protocol: Ensure correct implementation of SPF, DKIM, and DMARC.
  • Phases of warming: Warming an IP address involves three phases: setup, warm-up, and ongoing reputation management. Each step must be carefully planned
  • Microsoft Support: The exact verbiage you use with support can make or break a successful warming process.
Marketer view

Email marketer from Litmus shares segmenting your email list and gradually increasing sending volume to engaged subscribers during IP warming is key to establishing a good reputation with Microsoft. Avoid sending large volumes to unengaged or old email addresses early on.

April 2021 - Litmus
Marketer view

Email marketer from NeilPatel.com shares focusing on sending highly engaging content to a targeted audience during the IP warming process is crucial. It helps build a positive sender reputation with Microsoft, which looks at engagement metrics like opens and clicks.

October 2024 - NeilPatel.com
Marketer view

Email marketer from EmailToolTester explains that IP warming is divided into 3 distinct phases, each varying in difficulty: Set up, Warm-up, and Ongoing reputation management. The “Set-up phase” is when you need to prepare all the technical details like registering the IP, setting up SPF, DKIM, and DMARC. In the “Warm-up phase” you slowly increase your sending volume and monitor your open rates. The 'Ongoing reputation maintenance' phase is about keeping an eye on your sender reputation and email metrics.

June 2022 - EmailToolTester
Marketer view

Email marketer from Gmass details that although the article relates to Google IPs, warming up a new dedicated IP address for sending is a critical step to prevent your emails from being marked as spam by Internet Service Providers (ISPs) like Gmail, Yahoo, and Outlook. This process involves gradually increasing the volume of emails you send over time, starting with small batches to your most engaged subscribers, and slowly expanding to larger segments of your list. The goal is to establish a positive reputation with ISPs, demonstrating that your emails are wanted and not spam. This involves authenticating your email using SPF, DKIM, and DMARC records to verify your identity and protect against spoofing.

July 2023 - Gmass
Marketer view

Email marketer from Mailjet shares tracking key metrics like bounce rates, complaint rates, and engagement rates during IP warming helps you identify potential issues early and adjust your strategy. Microsoft considers these metrics when assessing your IP's reputation.

March 2025 - Mailjet
Marketer view

Marketer from Email Geeks shares to open a ticket with Microsoft and explain that you are warming up a new IP address and ask for "preemptive mitigation form" to get through.

November 2023 - Email Geeks
Marketer view

Email marketer from SendGrid explains ensuring that your email is properly authenticated with SPF, DKIM, and DMARC is essential for improving deliverability to Microsoft. Proper authentication helps prove that you are a legitimate sender.

November 2024 - SendGrid
Marketer view

Email marketer from Reddit shares contacting Microsoft support and explicitly asking for "preemptive accommodation" for a new IP address being warmed up can help ensure a smoother process.

September 2022 - Reddit
Marketer view

Marketer from Email Geeks shares a process that involves opening a ticket through the standard form, letting them know about the new IPs, and then after the automated response, asking for "preemptive accommodation" and an "escalation". Repeating this may be necessary to get the correct form.

September 2023 - Email Geeks
Marketer view

Email marketer from SparkPost shares the need to gradually increase sending volume according to a well-defined schedule during IP warming. Drastic increases can negatively impact your reputation with Microsoft.

October 2022 - SparkPost

What the experts say
3Expert opinions

Successfully navigating Microsoft's IP warming process hinges on understanding the internal handling of support requests and the importance of specific phrasing. Using terms like 'preemptive mitigation' or 'preemptive accommodation' when contacting Microsoft support places the issue in a specific category, influencing how it is handled internally. Furthermore, gradually warming up the IP address is crucial to prevent damage to the sender reputation, as different email providers have varying tolerances for deliverability problems. Sending practices must be carefully considered during the warm-up phase to avoid negatively impacting the IP's reputation.

Key opinions

  • Specific Wording Matters: Using phrases like 'preemptive mitigation' or 'preemptive accommodation' impacts internal handling at Microsoft.
  • Gradual Warm-up Crucial: Warming up the IP slowly prevents damage to sender reputation.
  • Different Tolerances: Email providers have different tolerances for deliverability issues.

Key considerations

  • Phrase Implementation: Use the specified phrases correctly when contacting Microsoft support.
  • Ramp-Up Schedule: Carefully plan the warm-up schedule to avoid sudden spikes in volume.
  • Sending Practices: Ensure sending practices align with best practices to maintain a good reputation.
Expert view

Expert from Word to the Wise explains the importance of using the phrases "preemptive mitigation" or "preemptive accommodation" when contacting Microsoft support during the IP warming process, to ensure the issue is handled correctly.

October 2022 - Word to the Wise
Expert view

Expert from Word to the Wise shares the importance of warming up slowly to prevent damage to your reputation, with different email providers having different tolerances for deliverability problems, and to carefully consider the sending practices when warming up IPs.

October 2024 - Word to the Wise
Expert view

Expert from Email Geeks explains the replies are dictated and written by MS legal and that using specific wording puts your issue into a different category, internally at Microsoft, handled a different way.

January 2024 - Email Geeks

What the documentation says
4Technical articles

Successfully navigating the Microsoft IP warming process, according to Microsoft's documentation, requires several key steps. Firstly, establishing a positive IP reputation involves implementing email authentication (SPF, DKIM, DMARC), maintaining consistent sending volumes, actively monitoring feedback loops, and adhering to email best practices to avoid spam flags. Secondly, using Microsoft's Sender Network Data Services (SNDS) is crucial to monitor IP reputation and address deliverability issues. Thirdly, subscribing to the Junk Email Reporting Program (JMRP) provides valuable reports on when emails are marked as spam, aiding in identifying and rectifying deliverability problems. Finally, following Microsoft's bulk sender guidelines related to list management, content quality, and complaint handling is essential for maintaining a solid sending reputation.

Key findings

  • IP Reputation Building: Establishing a good IP reputation involves authentication, consistent volumes, feedback monitoring, and best practices.
  • SNDS Monitoring: Using Microsoft SNDS is important for monitoring IP reputation.
  • JMRP Feedback: Subscribing to JMRP provides reports on spam markings, crucial for issue resolution.
  • Bulk Sender Guidelines: Following Microsoft's bulk sender guidelines is vital for reputation maintenance.

Key considerations

  • Authentication Implementation: Correctly configure and maintain SPF, DKIM, and DMARC records.
  • Volume Consistency: Avoid sudden spikes in sending volume, maintaining a steady flow.
  • Feedback Loop Analysis: Actively analyze SNDS and JMRP data to identify and resolve problems.
  • Guideline Adherence: Comply with Microsoft's bulk sender guidelines for list management and content.
Technical article

Documentation from Microsoft shares that following Microsoft's bulk sender guidelines is crucial for maintaining a good sending reputation. These guidelines cover aspects like list management, content quality, and complaint handling.

April 2024 - Microsoft
Technical article

Documentation from Microsoft SNDS explains the importance of using the Sender Network Data Services (SNDS) to monitor your IP's reputation with Microsoft. It helps you identify and address issues that might be affecting your deliverability to Outlook.com, Hotmail, and other Microsoft email services.

January 2023 - Microsoft SNDS
Technical article

Documentation from Microsoft explains subscribing to the Junk Email Reporting Program (JMRP) to receive reports on when your emails are marked as spam by Outlook.com users. This feedback is crucial for identifying and fixing deliverability issues.

May 2023 - Microsoft
Technical article

Documentation from Microsoft Docs explains that establishing a good IP reputation involves authenticating your email (SPF, DKIM, DMARC), maintaining consistent sending volumes, monitoring feedback loops, and adhering to best practices to avoid being flagged as spam.

January 2023 - Microsoft Docs