blocklist
Spamhaus Releases Sender Guidelines
While dozens of blocklists have faded into history or irrelevance over the past 25+ years, Spamhaus remains the heavyweight when it comes to...
Topic
bulk sender guidelines
bulk sender guidelines
Google warns: Sender requirements enforcement ramping up
As of November 3, 2025, Google has added a new warning to their Bulk Sender Guidelines FAQ page, warning that enforcement "ramps up...
bulk sender guidelines
Yahoo Sender Hub: Now with Insights
Yahoo has long had a very useful portal for email senders, chock full of important information, known as the Yahoo Sender Hub . It's whe...
authentication
La Poste: Authentication Required
(See new info at end!) Hey, big senders! It's time for another update regarding enhanced sender requirements put forth by a large mailbo...
b2b
B2B Senders: Do you have to comply?
I've heard the question more than once: "Do Gmail and Microsoft's new sender requirements really apply to us? We're B2B. We...
bulk sender guidelines
Webinar alert: New Microsoft Sender Requirements
Microsoft recently joined the "top four" mailbox providers (aka "MAGY," Microsoft, Apple, Google, and Yahoo) with update...
best practices
Gmail says: No funny (or smiley) business in friendly from
Google recently updated its email sender guidelines with clearer instructions on what not to do when it comes to your sender name (the frie...
bulk sender guidelines
Microsoft: P2 Sender Address Compliance
In light of all the chatter around the new Microsoft sender requirements , I’ve started to capture and catalog the various questions I’m get...
2025
The Spam Resource MAGY Sender Compliance Guide
Here it is, the 2025 Spam Resource MAGY (Microsoft, Apple, Google, Yahoo) Bulk Sender Compliance Guide. This contains almost everything you ...
2025
Microsoft Joins the Club: Top four B2C MBPs now require email auth
Deliverability is ever-evolving. Another day, another major mailbox provider raising the bar for bulk email senders. This time it's Micr...
bad advice
Google sending requirements: What of B2B?
Just a quick note today to address some bad advice I've seen out there in the wild. The question that I've seen asked is this: The ...
2024
Yahoo Mail/Gmail 2024 Easy Sender Compliance Guide
Here is everything you need to know (I think? I hope?) about how to comply with the new sender requirements announced by Google and Yahoo, a...
2024
Yahoo Mail and Gmail compliance deadline updates
I've got some important info for you today (and a reminder of two free webinars; one recorded, one upcoming and live) related to all of ...
alignment
DMARC to be required at Gmail in 2024
If you dig into the newly published upcoming sender requirements from Google , you'll unearth three points that relate to DMARC. These a...
authentication
Gmail and Yahoo: New deliverability requirements coming in 2024
On Tuesday, October 3, Google and Yahoo announced updated sender requirements for those who wish to send mail to Gmail or Yahoo Mail success...
bulk sender guidelines
Following best practices for sending to Gmail
Google has updated the Gmail "Bulk Sender Guidelines" page, and it is now called, "Prevent mail to Gmail users from being blo...