Spam Resource: All Things Deliverability

It's nearing the end of the month, and I suspect that the folks at Koli-Lõks OÜ are getting ready to post another month's worth of spam trap data. For fun, I thought I w…

By now, you've probably heard: Microsoft has officially joined the club. Following in the footsteps of Google and Yahoo, Microsoft has announced new requirements for high-vol…

It's been a light week as far as me posting things on Spam Resource. The reason for that? I've been so busy with the release of Valimail's  2025 Disinformation and Ma…

If you're launching a new domain and plan to send emails at scale, you can't just dive in and start sending a bunch of messages. At least, not if you actually want them t…

If you've ever wondered how long I've been in the email game, the answer is: a while. I've been working in and writing about email deliverability for more than twenty…

It's Friday! Time to take a break from DMARC dilemmas and deliverability disasters to enjoy something truly vital: Technotronic and their magnum opus: Pump Up the Jam . Techn…

A friend sent me the following question the other day: “Hi Al! How are you? I have one client who wants to send an email to more than 600,000 recipients who have already opted-ou…

Virgin Media (UK) is a British telecommunications company which provides telephone, television and internet services in the United Kingdom. The current version of this entity tr…

This week, I received a notification from Google letting me know that one of my old test accounts is on the chopping block. According to the alert, the account hasn’t been used i…

Google just announced that end-to-end encryption (E2EE) is now available for Gmail for business users. According to Google's official announcement , this new feature is being…

Validity, data quality and email marketing solutions provider founded in 2018, perhaps most well known in the deliverability space for their email deliverability monitoring platf…

In light of Microsoft’s recent release of updated email sender requirements , I thought it would be handy to share an updated list of all of the consumer domains under the “MAGY”…

Hey there, those of you out there in postmaster-land, maintaining inbound mail servers for mailbox providers or spam filtering/security services! Apple is updating their email in…

Here it is, the 2025 Spam Resource MAGY (Microsoft, Apple, Google, Yahoo) Bulk Sender Compliance Guide. This contains almost everything you need to know (I think? I hope?) about …

Deliverability is ever-evolving. Another day, another major mailbox provider raising the bar for bulk email senders. This time it's Microsoft tightening things up for their O…