MailCull blog: field notes on email deliverability and list quality

What to Actually Do With Risky and Unknown Verification Results

Two of the four statuses decide themselves. These are the two that need you.

October 18, 20266 minemail-validation

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 to Test an Email Verification Service Yourself

Build a control set where you already know the answers. Then measure.

October 6, 20266 minemail-validation

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