How to resolve email blocking issues with Microsoft domains?

Resolving email blocking issues with Microsoft domains requires a holistic approach, addressing both technical and strategic aspects of email sending. It begins with ensuring your IP is not on blocklists and proper email authentication via SPF, DKIM, and DMARC. Monitoring your sender reputation through Microsoft's SNDS is crucial, as is actively managing subscriber lists and ensuring explicit consent. Experts recommend looking beyond Microsoft-specific solutions and addressing underlying issues with acquisition and mailing practices. Creating engaging content, managing bounces and complaints, and warming up IP addresses also contribute to improved deliverability. For B2C mail, temporarily suspending sending to 'obvious' Microsoft domains can provide relief, while O365 mail may require filtering by MX IP range. Engaging directly with Microsoft with details of your practices is beneficial. Participating in feedback loops like JMRP is also recommended, as are content and code audits to prevent triggering spam filters.

Resolving email blocking issues with Microsoft domains involves a multi-faceted approach. Key strategies include maintaining a clean and engaged email list, segmenting your audience, and using a reputable Email Service Provider (ESP). Equally important is adhering to email authentication best practices (SPF, DKIM, DMARC) and consistently monitoring your sender reputation through tools like Microsoft's SNDS. Analyzing bounce codes and avoiding spam triggers in your content are crucial for troubleshooting. Engaging with Microsoft's support channels and feedback loops (JMRP) can also aid in identifying and rectifying specific issues.

Resolving email blocking issues with Microsoft domains often requires addressing underlying problems within your mailing practices rather than solely focusing on Microsoft. Key strategies include fixing acquisition methods, ensuring consent, managing bounces and complaints, and creating engaging content. For B2C mail, temporarily suspending sending to obvious Microsoft domains can help. For O365, filtering by recipient MX IP range or suspending upon rejection are viable options. Direct communication with Microsoft, detailing your mailing practices and subscriber acquisition methods, can lead to resolution. Participating in Microsoft's JMRP helps identify and address issues based on recipient feedback. Email authentication and sender reputation monitoring are essential.

Resolving email blocking issues with Microsoft domains, as outlined by official documentation, centers around ensuring proper email authentication, monitoring sender reputation, and adhering to Microsoft's guidelines. Key steps include verifying that your sending IP is not on blocklists, correctly configuring SPF, DKIM, and DMARC records, and actively monitoring your IP reputation using Microsoft's SNDS program. Effectively using SNDS involves regularly checking your reputation, investigating complaints, and following Microsoft's sending best practices. Implementing DMARC requires creating a DMARC record, monitoring DMARC reports for authentication failures, and gradually enforcing a policy to protect against spoofing.