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
Apr 28
2026
2026
Apollo Email Verifier: Pre-Send Cleaning for Outbound Lists
Why Apollo's built-in verification isn't enough for cold outreach, what proper SMTP verification covers, and a workflow for cleaning Apollo exports before sending.
6 minRead →
Apr 28
2026
2026
Email Verification in Clay: Adding the Receipts to Enrichment
Clay gives you enriched email data. MailCull gives you the receipt. Here's how to add SMTP verification to your Clay workflow.
6 minRead →
Apr 28
2026
2026
Instantly Email Verifier: How to Clean Lists Without Per-Email Costs
How to verify email lists before importing into Instantly — the full check stack, inbox rotation implications, and a step-by-step workflow.
6 minRead →
Apr 28
2026
2026
Email Verification for lemlist: A Workflow Guide
A complete verification workflow for lemlist users — what SMTP and M365 checks cover, how to handle risky addresses in an agency context, and the step-by-step process.
7 minRead →
Apr 28
2026
2026
Email Verifier for Smartlead Users: Clean Lists Before Import
How to verify email lists before importing into Smartlead — what the tool checks, why built-in validation isn't enough, and a step-by-step workflow.
7 minRead →