Blog

Hard and soft bounces explained in plain English, and why your sender reputation pays for every one of them.

Aggregate reports arrive as unreadable XML. This is a guide to parsing and understanding those files. The fields that matter and the ones to ignore, plus, what each finding means strategically.

New sending infrastructure has no reputation, which receiving servers treat with suspicion. This guide is the staged process for building reputation safely, and the mistakes that can burn it in week one.

Bigger list, more sends. That used to be the whole logic of email marketing. It no longer works like that. How to prune a list, when to do it, and why keeping dead addresses hurts you.

A guided tour of the SPF generator, how the questions map to senders, why the lookup counter matters, and what to do with the record once it is built.

A deliverability audit is not a report nobody reads. It is a diagnosis of where your email breaks, what it costs you, and how to fix it. Here is exactly what the work contains.

Scammers do not need to break into your systems to steal from your customers and suppliers. They can send email as you instead. Here is how spoofing works and how DMARC shuts it down.

How DKIM selectors work, why records under different selectors behave differently, and what key rotation actually involves.