SPF, DKIM, and DMARC explained simply
Three acronyms that determine whether your message reaches the mailbox. What they mean, why filters block you without them, and how to set them up.
Practical articles on getting cold email into the inbox: domain authentication, IP addresses, warm-up and the math of sending volume. No promises that cannot be measured.
Three acronyms that determine whether your message reaches the mailbox. What they mean, why filters block you without them, and how to set them up.
When shared makes sense and when dedicated does. Why a dedicated IP needs volume to build reputation, and how a hybrid with Google Mailbox solves it.
Six most common reasons messages don't land in the mailbox, plus a practical checklist you run through before every campaign.
Simple volume math: how many mailboxes and domains for your daily message count, and why more mailboxes doesn't have to mean higher cost.