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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Email List Cleaning vs Email Verification: What's the Difference?

A practical explanation of where verification ends and broader list cleaning begins.

list-cleaningverify-listverify-email

Email Verification for Accountants and Financial Advisors

Why accounting and advisory firms benefit from validating older client contact lists.

email-validationprofessional-servicesclient-communication

How Email Validation Differs From Deliverability Testing

A clear explanation of the difference between cleaning a list and testing inbox placement.

email-validationdeliverabilitylist-cleaning

Free Email List Cleaner — Clean Your List Without Paying Per Email

A practical look at how MailCull helps you clean a CSV — including what the engine actually checks — without paying per email or buying credits.

list-cleaningverify-listdeliverability

How to Verify Emails in Google Sheets

No add-on required. Just move the sheet through a better review workflow and bring a cleaner CSV back in.

google-sheetscsvverify-list

What Happens When You Send to an Invalid Email Address

A clear look at the chain reaction that starts with a bad address and ends with weaker deliverability.

deliverabilitybounce-ratelist-cleaning

Email Cleaning vs Scrubbing vs Verification

A plain-language guide to three common email hygiene terms and how they overlap.

email-validationlist-cleaningdeliverability

Email Verification for SaaS: Clean Your User Database

When user emails go bad, your onboarding and lifecycle data get weaker too. Cleanup is part of product ops, not just marketing.

saasverify-listverify-email

Can You Verify an Email Address Without Sending an Email?

A practical explanation of non-sending email checks and where their limits are.

verify-emailemail-validationdeliverability