Field notes · ~1 post / week

Writing about sending, deliverability, and the rules providers actually enforce.

Practical guides, post-mortems from real sends, and plain-English explanations of why your list quality is doing what it is doing. No fluff, no AI slop, no gated PDFs — just our working notes.

2026

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MailCull vs Clearout: price, accuracy, and the evidence chain

Clearout claims compliance certifications and broad integrations. MailCull leads with the SMTP reply on every verdict and a flat $9/month price. Here is how to choose.

comparisonsemail-validationverify-list

MailCull vs MillionVerifier: the same volume, very different verdicts

MillionVerifier is the price floor. MailCull leads on the evidence chain and M365 cascade. Here is the honest side-by-side at every volume.

comparisonsemail-validationdeliverability

MailCull vs Bouncer: how the verdicts actually compare

Bouncer is the closest competitor to MailCull on positioning. Here is where they win, where we win, and how to choose.

comparisonsdeliverabilityemail-validation

Best Free Email Verification Tools in 2026

A grounded look at what “free” usually means in email verification, and where MailCull fits.

email-validationcomparisonslist-cleaning

What Is a Role-Based Email Address and Should You Send to It?

Role-based inboxes are not automatically bad, but they often behave differently from personal addresses.

deliverabilitylist-cleaningemail-validation

Email Verification for Small Business: What You Actually Need

A practical look at what small businesses actually need from email verification.

small-businessemail-validationlist-cleaning

What Is MX Record Validation and Why Does It Matter?

MX validation is one of the clearest ways to tell whether a domain appears set up to receive mail.

email-validationdeliverabilitymx

Email Verification Checks Explained: What Each Layer Actually Does

A plain-language guide to the check layers used in modern email verification — from surface syntax to deep SMTP and Microsoft 365 HTTP enumeration.

email-validationcomparisonsverify-email