2025/07/04 by Yves-Marie Le Pors-Chauvel.
Orange Spain Announces the End of Its Email Services: What All Senders Need to Know Ahead of September 5, 2025
Orange Spain has officially announced the permanent shutdown of all its email services as of September 5, 2025. What will happen on September 5? All accounts will be permanently closed and deleted—without exception. Even end users will no longer be able to access their messages! This announcement affects anyone using one of the following 17 […]
Categories: Deliverability, Providers
2025/07/03 by Yves-Marie Le Pors-Chauvel.
Unlock Peak Performance: Postmastery's Q1 2025 Email Delivery Benchmark is Here
We are thrilled to announce the release of Postmastery’s Email Delivery Benchmark Q1 2025. This essential study, conducted from January to March 2025, offers a refined analysis incorporating billions of email transactions to deliver an even more robust and comprehensive overview of email performance. What can you find inside? In this edition, we evaluate the most recent delivery trends […]
Categories: Deliverability, Providers
2025/06/20 by Yves-Marie Le Pors-Chauvel.
Outlook Deliverability: A Silent Shift with Serious Consequences
Starting on June 17th, 2025 at 11:10 UTC, multiple high-volume senders – particularly in France – began experiencing a sudden surge in DKIM failures on emails sent to Microsoft domains (Outlook, Hotmail, etc.). These bounces occurred even though SPF and DMARC were properly configured. UPDATE – July, 10 2025 Since the original publication of this […]
Categories: Authentication, Deliverability, Providers
2025/05/23 by Willem Stam.
How Omeda Transformed Email Delivery with Postmastery
Omeda, a leading audience data platform, recently modernized its email infrastructure by partnering with Postmastery. Faced with growing email volumes and an aging internal system, Omeda made the strategic shift to PowerMTA, supported by Postmastery’s deep expertise in email delivery optimization. The results? Faster, more reliable delivery, crucial for time-sensitive communications, plus streamlined operations and […]
Categories: Case Studies, Deliverability, General, Solutions
2025/01/15 by Maarten Oelering.
Deploying Business-Critical Emails with PowerMTA on Azure: A Bluetooth SIG Case Study
Objective: new email delivery solution Bluetooth SIG sends hundreds of thousands of automated outbound messages daily and successful email delivery is critical to Bluetooth SIG’s operations. Due to various technical constraints, Bluetooth SIG started a RFP process in early 2018 to select and implement a new email delivery solution, the Microsoft Azure hosted PowerMTA Project […]
Categories: Case Studies, Deliverability, General, PowerMTA
2025/01/07 by Willem Stam.
GivingTuesday 2024: Record-Breaking Email Campaigns with Engaging Networks
GivingTuesday is a key date for nonprofits and charities to engage supporters and drive crucial fundraising efforts. For many organisations, it’s one of the busiest days of the year, requiring platforms like Engaging Networks to scale efficiently to handle massive email volumes. In 2024, Engaging Networks rose to the challenge, delivering record-breaking results through careful […]
Categories: Case Studies, Deliverability, General
2024/07/10 by Yves-Marie Le Pors-Chauvel.
All the bounce we cannot see: A Deferral story
When we work in email deliverability, we constantly hear about the processing of bounces, sometimes about blocking bounces and more often about suppressing bounces… In short, as you will have understood, processing bounces is the absolute prerequisite to email deliverability … But then, what about Deferrals… Should we process them? And if yes, how? What […]
Categories: Authentication, Deliverability, Deliverability