Recent Posts

Are you a grown-up sender?

• steve
• Jan 5, 2024

• Best Practices , Industry

Yes, it’s another yahoogle best practices post.

Google divide their requirements for senders into those sending more than 5,000 messages a day, and those sending less.

Yahoogle FAQs

• steve
• Jan 4, 2024

• Best Practices , Faq , Industry

Just a very, very short post with links to the Yahoo and Google requirements FAQs. Given I can’t ever remember them I’m guessing lots of y’all can’t either.

Answers to your questions about the new Yahoo and Google technical requirements

• laura
• Jan 3, 2024

• Industry

On January 9th at 6pm GMT, 1pm EST and 10am PST I’ll be speaking with Nout Boctor-Smith of Nine Lives Digital about the new Yahoo and Google technical requirements.

About My Email

• steve
• Jan 2, 2024

• Best Practices , Delivery Improvement , Technical

Happy 2024, everyone!

We’ve released a shiny new tool to let folks self-check a lot of common questions we see about email requirements.

Tis the Season

• laura
• Nov 21, 2023

• Best Practices , Industry

Read More

Yahoogle Requirements Update

• steve
• Nov 9, 2023

• Best Practices , Delivery Improvement

Since I wrote about it last month the requirements for bulk senders to Yahoo and Google have changed a little.

Can you STARTTLS?

• steve
• Oct 25, 2023

• Technical

Email supports TLS (Transport Layer Security), what we used to call SSL.

Customer subdomain authentication

• steve
• Oct 20, 2023

• Delivery Improvement , Technical

EDIT: Now with a production-ready implementation I talk about more here.

Wildcards and DKIM and DMARC, oh my!

• steve
• Oct 18, 2023

• Industry , Technical

If you’re an ESP with small customers you may have looked at the recent Google / Yahoo requirements around DMARC-style alignment for authentication and panicked a bit.

Deferrals at Microsoft

• steve
• Oct 11, 2023

• Industry

If you’re seeing a lot of “451 4.7.500 Server busy. Please try again later” from Office365 this morning you’re not alone.