List-Unsubscribe header critical for sustained email delivery

In our daily work, we still encounter missing List-Unsubscribe headers in emails. Reason enough to publish another BLOG post on this important topic. Specially for PowerMTA users, we released an interesting add-on to streamline MAILTO unsubscribe requests. What is a List-Unsubscribe header? When subscribers want to unsubscribe from a mailing list and the unsubscribe process […]

Read more

Categories: Case Studies, General, PowerMTA

Webinar PMTA insights

The Future of PowerMTA with Postmastery & Port25 On Tuesday 6 November, Postmastery and Port25 held a joint webinar. The webinar was a great success. Three panellists took part in an open conversation about the future of PowerMTA and the next steps. They answered questions from the PowerMTA community on topics that included: new developments […]

Read more

Categories: General, PowerMTA

Meet your deliverability peers at the Port25 summit, 20 September 2018, Amsterdam

This year too, Postmastery is the Premier Platinum Sponsor of the Port25 Summit. As co-organiser, Postmastery’s complete team will be there to meet you. The Summit will be a highly interactive event that brings together industry representatives, email deliverability experts, technology vendors, and senior email professionals to explore and discuss the trends that will ‘shape […]

Read more

Categories: General, PowerMTA