One of the most important aspects of email marketing is building trust. Whether it’s with mailbox providers (MBPs), subscribers, or email service providers (ESPs), your brand and your sender reputation are everything. And starting in 2024, major mailbox providers like Google and Yahoo have started rolling out enforcement of “no auth, no entry”.

Join me and Matthew Vernhout, founder of the EmailKarma blog (among many other things), as we discuss the more technical aspects of email authentication and how it impacts email deliverability in an episode I recorded for the Email Deliverability Unfiltered Series I managed while at Kickbox.