SoftwarePostmastery ConsolePostmastery Console is a web-based email analytics product from Postmastery. It brings together delivery event data, sender reputation monitoring, message checks and…
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About
Postmastery provides email deliverability consulting, monitoring software and sending-infrastructure support for ESPs, agencies and brands. Its work includes delivery assessments, MTA configuration, authentication, migration and ongoing reputation management.
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The Postmastery Console consolidates delivery analytics, reputation monitoring, message audits and DMARC reports. It connects with infrastructure including PowerMTA, Halon, KumoMTA, GreenArrow and Postfix, as well as supported SMTP services. Consultants can use transaction logs, headers and reputation data to investigate failures or delays.
A free message assessment checks technical sending practices; a fuller engagement examines infrastructure and operational data. Managed delivery services add monitoring at an agreed frequency, corrective recommendations and reports to the sender’s team. General enquiries use info@postmastery.com or +31 (0)20 26 10 438.
Published customer cases include Laposta, Lettermint, Omeda and Bluetooth SIG. The Omeda case describes a phased move from an internally built mail transfer agent to PowerMTA, migrating customers gradually to maintain service.
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SoftwarePostmastery ConsoleSoftwarePostmastery EmailAuditPostmastery Email Deliverability Test, also called EmailAudit, assesses a message sent to a one-time recipient address. The test reviews configuration, authentication, reputation,…
View profileServicePostmastery ConsultingPostmastery Deliverability Consulting is a service for email service providers, agencies and brands. Consultants assess sending infrastructure, MTA configuration, transaction and reputation…
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Verified from cited rosters or confirmed directly by the membership organisation.
OrganisationsemailexpertStrategic Partnerthe inclusive email community covering deliverability, security, anti-spam & marketing since 2008 expert vendors, agencies & consultants. Emailexpert is both an email…
View profileConfirmed by emailexpert. Checked 27 September 2026.
OrganisationsM3AAWGSupporterM3AAWG is a global industry association working on internet abuse. Its members include communications providers, hosting companies, security vendors, email service providers…
View profileMembership checked 4 October 2026. Official roster
Activity
emailexpert coverage
Postmastery Q2 2026 benchmark: Seznam fastest, Comcast toughest
Postmastery has published the tenth edition of its Email Delivery Benchmark, covering April to June 2026. It is drawn from 15.5 billion transactions sent by large ESPs and…
Lettermint draws the sovereignty line at the invoice
A two-person Dutch ESP built a sending stack on European soil, on open source, with no investors. The one US supplier left standing handles the billing. Lettermint is…
Contact & locations
Location
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Listed location
Duivelseiland, Amsterdam, North Holland, Netherlands
Contact details
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Phone+31 (0)20 26 10 438
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AddressDuivelseiland
Company details
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Employees2–10
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Legal NamePostmastery B.V.
News & coverage
11 related stories
Postmastery Q2 2026 benchmark: Seznam fastest, Comcast toughest
Postmastery has published the tenth edition of its Email Delivery Benchmark, covering April to June 2026. It is drawn from 15.5 billion transactions sent by large ESPs and…
Lettermint draws the sovereignty line at the invoice
A two-person Dutch ESP built a sending stack on European soil, on open source, with no investors. The one US supplier left standing handles the billing. Lettermint is…
Postmastery Joins Emailexpert as Strategic Partner
Postmastery has joined Emailexpert as a Strategic Partner Member for 2026-2027, formalising five years of collaboration spanning nine events across seven cities. The relationship began at Inbox Expo…
Microsoft Redacts JMRP: The End of Unblinded Feedback Loops
The long-awaited overhaul of Microsoft's postmaster services has moved from staging to production. Following the migration of the Smart Network Data Services (SNDS) portal, Microsoft has changed the…
Postmastery Q1 2026 Delivery Benchmark: DMARC enforcement arrives at GMX and WEB.DE
Postmastery has released the ninth edition of its Email Delivery Benchmark, covering January to March 2026. The report is built from 15.5 billion email transactions and sets out…
Postmastery Again Platinum Sponsor at 2026 Deliverability Summit
Postmastery returns as Platinum Sponsor for the 2026 Deliverability Summit in Barcelona, driving email excellence.
Postmastery Joins as Emailexpert Charter Enterprise Member
We're thrilled to announce that Postmastery, the Amsterdam-based email delivery and deliverability specialists, have officially joined emailexpert as a Charter Enterprise Member. This milestone represents a significant strengthening…
Deliverability Summit Announces 2025 Amsterdam Event Dates
The Deliverability Summit 2025 is set to return to Amsterdam on April 24-25, bringing together global email deliverability professionals for an unmatched event in the heart of Europe. This year's summit proudly announces…
Breaking New Ground: Postmastery Global Email Delivery Benchmark Report
First ever Global Email Delivery Benchmark Report Q1 2024 In a pioneering move for the industry, Postmastery has released its inaugural Global Email Delivery Benchmark Report, marking a…
Postmastery Appoints Yves-Marie Le Pors-Chauvel as Deliverability Engineer
Postmastery, a renowned provider of email delivery solutions, announced the appointment of Yves-Marie Le Pors-Chauvel as their new Deliverability Engineer. With over 10 years of experience in the…
