As experts in email delivery, Postmastery helps senders to create optimal infrastructure and practices for email marketing and transactional email applications. We help legitimate email senders to be recognized as trustworthy senders to ensure email delivery to inboxes. Our products and services revolve around securing results for our clients. Postmastery is based in Amsterdam, the Netherlands. Our world-wide client base includes email service providers (ESPs), marketing agencies and other professional senders. Postmastery works for senders like Adestra, Microsoft, Moosend and Booking.com.