Deliverability, measured
What actually moves inbox placement, tested against real sends rather than repeated from a listicle.
First posts in progress
Notes from the sending layer.
We would rather publish six things worth reading than sixty written for a search engine. Here is what we are working on.
SPF, DKIM and DMARC
The three records everyone half-configures, what each one proves, and how to read a failing report.
Warmup that is not theatre
Why volume ramps work, where the common schedules are wrong, and how to tell warmup is finished.
A/B testing outbound
Sample sizes for reply rate, why open rate is the wrong metric to optimise, and when to call a winner.
Sequence design
Follow-up spacing, when to stop, and writing a second email that is not just "bumping this up".
Engineering notes
How the send queue, rate limiting and token refresh work here — including the parts we got wrong first.
Want one of these written first?
Tell us which topic would actually help you and we will start there.
Or email us directly at support@outreachpro.com