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 […]

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Categories: Case Studies, General, PowerMTA

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 […]

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Categories: Authentication, Deliverability, General

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 […]

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Categories: Authentication, General, ISP, Postmaster(y) ISP pages

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