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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How Often Should You Clean Your Email List?

A practical cleaning schedule for newsletters, campaigns, cold outreach, and older imported lists.

list-cleaninglist-hygienedeliverability

Clean Your Email List Before Sending: Why It Matters and How to Do It

A simple pre-campaign checklist for taking a raw send list and turning it into a cleaner file.

list-cleaningverify-listdeliverability

Email Validation Explained: What It Means and Why You Need It

A straightforward explanation of email validation and the checks that make it useful.

email-validationdeliverabilityverify-email

Email List Cleaning for Agencies: Clean Client Lists Without the Per-Email Cost

A MailCull-focused look at why agencies need repeatable list-cleaning workflows, not credit math.

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Clean Your Email List Before Cold Outreach: A Non-Negotiable Step

Cold outreach gives you less room for list-quality mistakes. Here is what real pre-send verification looks like and why the shallow checks are not enough.

cold-outreachlist-cleaningbounce-rate

MailCull vs ZeroBounce: side-by-side, no spin

ZeroBounce claims 99% accuracy. Independent tests land at 90-97%. We publish 91-93% honestly with the methodology. Here is the side-by-side at every volume.

comparisonslist-cleaningemail-validation

MailCull vs NeverBounce: when each one wins

NeverBounce has a polished bulk-job UI. MailCull shows the SMTP reply for every check and costs $9/month flat. Here is the honest side-by-side.

comparisonsemail-validationlist-cleaning

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