Category: Blog

Catch-all domains accept every address a server checks, so verifiers report unknown instead of valid, and why that raises bounce risk.

Ask Reddit for the best transactional email service and the same short list comes back: Postmark for deliverability, Resend for developer experience, and Amazon SES for cost at scale.

A dedicated IP puts your sender reputation entirely in your own hands, but it only pays off past a certain volume. Here’s how ESPs define that threshold, and a framework for choosing between the two.

Email delivery rate and deliverability rate measure different things: one tracks server acceptance, the other tracks inbox placement. Here is how each is calculated, how to measure inbox placement rate directly, and what the 2026 benchmark numbers actually mean.

Email conversion rate measures how many recipients complete an action, not just click a link. Learn the formula, how it differs from CTR, real benchmarks by send type, and why open-based tracking distorts the numbers.

Reddit’s take on email warmup is more balanced than the tool vendors suggest: it helps a new domain, but it will not save bad copy, weak targeting, or a reputation that is already damaged.

Email click-through rate benchmarks from Mailchimp, Campaign Monitor, and HubSpot, the CTR vs CTOR difference explained, and the tactics that improve it.

How GDPR applies to email marketing: lawful basis, valid consent, the soft opt-in exception, and how transactional email differs, plus a compliance checklist.

MJML compiles semantic /-style tags into the nested tables, inline styles, and Outlook conditional comments that responsive HTML email actually needs. Here’s how the component model, CLI, and framework integrations work, and where MJML sits next to React Email and raw HTML.

Looking for a Mailgun vs SendGrid verdict on Reddit? The honest answer is that most experienced users have moved on from both, toward SES, Resend, and Postmark.

A developer-first look at transactional email APIs: authentication patterns, webhook signing, batch limits, and templating models for Postmark, SendGrid, Resend, Mailgun, Amazon SES, and Brevo, as of July 2026.

ActiveCampaign’s automation caps and CRM pricing push many SaaS teams to look elsewhere. Compare 8 alternatives with July 2026 pricing and how to pick one.