Eight people passionate about email

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 its 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 a Port25 channel partner 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 Rooseboom is Management Assistant and is 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 backgrounds in email and extensive experience with PowerMTA and deliverability. They perform delivery assessments and email operations support.

Please feel free to contact one of us and stay in touch with our services and products.


Our Partner network

Postmastery is channel partner of Port25 in providing PowerMTA licences, integration services, local support and delivery optimisation services.

Postmastery is support member of The Messaging, Malware and Mobile Anti-Abuse Working Group (M3AAWG). At M3AAWG the global email industry comes together to work against botnets, malware, spam, viruses, DoS attacks and other online exploitation.

We are here to help

Postmastery’s client base is located around the world and includes the USA, Brazil, 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 works for customers remotely using modern communication technologies or, if needed, works on-site anywhere in Europe.

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Postmastery respects your privacy, we will never cold-call you or share your data with others.