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MailCull

MailCull blog: field notes on email deliverability and list quality

2026 9 of 14

CRM Data Hygiene: Keeping Contacts Clean in HubSpot, Salesforce and Pipedrive

A dead address in the CRM costs selling time, not just a bounce.

October 15, 20266 minlist-hygiene

Email Verification for Agencies Managing Client Lists

You inherit the list and you inherit the blame. Audit before you send.

October 12, 20266 minlist-cleaning

Nine Email Data Myths That Cost People Money

Nine things people believe about email data that quietly cost them money.

October 9, 20266 minlist-hygiene

How Ecommerce Brands Lose Revenue to Invalid Email Addresses

The typo at checkout does not just cost you a subscriber. It costs you the order confirmation.

October 3, 20266 minlist-cleaning

Double Opt-In vs Single Opt-In: The Honest Trade-Off

You lose signups. You gain a list where every address is proven. Here is the maths.

September 30, 20266 minlist-hygiene

Re-Engagement Campaigns: Winning Back Inactive Subscribers Without Wrecking Deliverability

You are about to mail the riskiest segment you own. Do it in this order.

September 27, 20266 mindeliverability

You Inherited a Purchased Email List. Now What?

Verification tells you the addresses work. It cannot tell you that you may mail them.

September 24, 20266 minlist-cleaning

Email Verification and GDPR: What Is Lawful When You Clean a List

An email address is personal data. Verifying it is processing. Here is what that means.

September 21, 20266 minlist-hygiene

Stop Bad Email Addresses at the Signup Form

Cleaning is repair. This is prevention, and it costs less.

September 15, 20266 minlist-hygiene
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