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

Newest first · 9 of 80 shown
Apr 09
2026

Bulk Email Verifier: How to Verify Thousands of Emails at Once

How bulk verification works, what deep-scan checks actually look like under the hood, and where MailCull fits.
bulk-verificationverify-listcsv
6 minRead →
Apr 09
2026

Email Cleaning vs Scrubbing vs Verification

A plain-language guide to three common email hygiene terms and how they overlap.
email-validationlist-cleaningdeliverability
1 minRead →
Apr 09
2026

What Is Email Deliverability Score and How to Improve Yours

You may not see one global score, but the underlying trust signals are real and list quality is one of the levers you control.
deliverabilitysender-reputationmetrics
1 minRead →
Apr 08
2026

How to Build an Email List That Stays Clean

Seven habits that help teams collect better email data from day one.
list-cleaningemail-marketingsignup-forms
1 minRead →
Apr 08
2026

How to Import a Clean Email List Into Brevo (Sendinblue)

Cleaning before import is smarter than discovering problems after the send. Here is the full Brevo workflow.
brevolist-cleaningverify-list
4 minRead →
Apr 08
2026

How to Clean an Email List in ConvertKit (Kit)

For creators and newsletter operators, the list is the channel. Here is how to verify it properly.
convertkitkitcreators
4 minRead →
Apr 08
2026

How to Handle Catch-All Emails in Your List

When validation confidence is lower, your options are usually segment, monitor, or remove based on the risk of the workflow.
catch-alldeliverabilitylist-cleaning
1 minRead →
Apr 07
2026

CSV Email Checker: How to Validate Emails in a CSV File

How MailCull handles CSV-based email checking without forcing you to rebuild the file first.
csvverify-listlist-cleaning
2 minRead →
Apr 07
2026

Email Verification for Real Estate Agents: Keep Your Contact Database Clean

Open house lists, older client records, and referral data all decay faster than most teams expect.
real-estatelist-cleaningcrm
1 minRead →