Eight people passionate about email

Postmastery helps legitimate email senders to be recognised as trustworthy senders to ensure email delivery to inboxes. Postmastery is based in Amsterdam, the Netherlands and sister company DeliverNow is based in Paris. The world-wide client base includes email service providers (ESPs), marketing agencies and other professional senders. Postmastery is channel partner of Port25 in providing PowerMTA licences, integration services, local support and delivery optimisation services.

The company is led by Maarten Oelering, Willem Stam and Jérôme Gays, who have been in the email industry since 2000. Liselotte is Management Assistant and responsible for Postmastery’s back-office. Other members of our team are Mounir el Hahaoui, Alex Irimia, Olivier Moulene and Syed Alam. They all have a background in email and extensive experience with PowerMTA and deliverability. They perform delivery assessments and email operations support.











Postmastery’s client base are located in many different countries, including the US, Brasil, Malaysia, South Africa, and, of course, many European countries. Our clients come from almost every sector – the only thing they all have in common is that they send legitimate email on a professional basis.

Postmastery work for customers on a remote basis using modern communication technologies or, if needed, on-site anywhere throughout Europe.

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