2024/02/06 by Willem Stam.
Join us in Amsterdam and secure your discount.
Join us in Amsterdam on April 11th and 12th, 2024, for Postmastery Customer Day at Deliverability Summit: Postmastery Edition, in our hometown of Amsterdam! This event will focus on the critical challenges faced by enterprise senders and those managing their own email infrastructure. Please find here the full agenda. Steering Through Deliverability Challenges The Customer […]
Categories: Deliverability, General
2024/01/29 by Yves-Marie Le Pors-Chauvel.
Laposte.net Postmaster(y) page
In order to help the sender community, we are glad to share our experiences collected over the years with some ISPs. This page is about the main French Mailbox Provider: Laposte.net. This mailbox provider represents millions of active users and is the French biggest free Webmail. Postmastery integrates data from the aggregated Feedback Loop of […]
Categories: Authentication, Deliverability, ISP, Postmaster(y) ISP pages
2024/01/23 by Olivier Moulene.
Implement the List-Unsubscribe Header to Protect Your Email Deliverability
In our daily work, we still encounter missing List-Unsubscribe headers in emails. Reason enough to publish another BLOG post on this topic. It has become even more important recently since Google and Yahoo now include the list-unsubscribe mechanism among their requirements. What is a List-Unsubscribe header? When subscribers want to unsubscribe from a mailing list […]
Categories: Case Studies, General, PowerMTA
2023/12/14 by Yves-Marie Le Pors-Chauvel.
Google & Yahoo’s February Bulk Email Policies: A Guide to Compliance
On October 3rd 2023, Google and Yahoo introduced new requirements to fight spam! This is a major change for the email industry, while, for the first time, two of the biggest Mailbox Providers announced commonly that they will apply the same restrictions to bulk senders. Who is concerned about it? For Gmail personal accounts (Gmail.com […]
Categories: Authentication, Deliverability, General
2023/11/23 by Syed Alam.
Gmail Postmaster(y) page
IMPORTANT UPDATE 23/11/2023: Since November 15, Google has changed many of its SMTP answers, this blog post has been updated with these new messages. In case of any need, please reach out to the Postmastery Team. To help the sender community, we are delighted to share our extensive knowledge and experiences gained over the years […]
Categories: Authentication, ISP, Postmaster(y) ISP pages
2023/09/29 by Yves-Marie Le Pors-Chauvel.
SFR Postmaster(y) page
To help the sender community, we are very happy to share our experience collected over the past years, about Mailbox providers. This article is about a historic provider in France: SFR Grand Public (sfr.fr, neuf.fr, club-internet.fr, cegetel.net, numericable.fr, etc…). Postmastery integrates data from the aggregated Feedback Loop of SFR Grand Public, through its monitoring tool […]
Categories: Authentication, General, ISP, Postmaster(y) ISP pages
2023/09/28 by Olivier Moulene.
Office 365 / Microsoft 365 Postmaster(y) page
To help the sender community, we are glad to share our experiences collected over the years with some ISPs. This page is about Office 365 which is a subscription-based suite of productivity software and services developed by Microsoft. In this article we will focus on their email hosting solution: Exchange Online. We will highlight below […]
Categories: Authentication, Postmaster(y) ISP pages