5,000
messages a day is where the gates close
Google, Yahoo and Microsoft now reject mail that fails authentication rather than filtering it into a spam folder where somebody might still find it. Any domain sending five thousand or more messages a day has to pass SPF, DKIM and DMARC, carry a one-click unsubscribe, and hold spam complaints under 0.3%, with 0.1% the number to actually work to.
Sources: powerdmarc.com and redsift.com.
The 2026 sender gates, and the checks to run this week
89%
inbox placement, for senders who comply
Senders who meet those requirements average about 89% inbox placement. Senders who do not see roughly a fifth to a third of their mail go to spam. That gap is not a copywriting problem, and no amount of subject line testing closes it.
Sources: powerdmarc.com and redsift.com.
What the checks are, in the order to run them
2 weeks
is how long LinkedIn banned an AI SDR for
The category that promised to automate all of this ran into trouble in public. 11x has been reported to have heavy churn and disputed customer claims, LinkedIn banned Artisan for about two weeks, and Artisan’s own chief executive said he would “cringe in pain” at the emails his early product wrote. The tools sold volume into the one channel that had just started punishing volume.
Sources: salesmotion.io and refontelearning.com.
Do AI SDRs work? What the public record says
The list
is the biggest lever, ahead of the agency
The biggest lever in an account-based program is the account list itself, ahead of the agency running it and ahead of whatever software it is run on. The research, the sequence and the spend are all downstream of who is on the list, which is why the first weeks of any engagement go there and nowhere else.
Source: salesmotion.io.
How to build an account list you can defend