If you've ever looked at an email dashboard, you know the drill. One big number at the top: delivered over sent. 97-point-something percent, a little green arrow, everyone nods, meeting over. I've spent years staring at that number, and here's my honest take: it's not wrong. It's just lazy. It blends together things that have nothing to do with each other — and worse, it makes no distinction between the failures you can fix and the failures nobody on this planet can fix. Let

The difference between the two goes beyond the word’s complexity and length. Based on the same verb, with time and development of email,...

There are several things to understand about the construction of email, headers, and domains. Multiplicity and mixture of official and...

Everyone is talking about it. Everyone is doing it. It solves all deliverability issues. There is only one right way to do it. Are those...

My name is Martin Schwill. In past projects responsible for MTA migrations (PMTA to Halon, PMTA to KumoMTA), designing, developing, and...