Email Validation Insights
Expert guides, tutorials, and insights on email validation, deliverability, and lead generation.
Featured Articles
Email Deliverability in 2025: Are Your Messages Reaching Inboxes?
The state of email deliverability in 2025. New challenges, stricter filters, and how to ensure your messages reach inboxes.
Anirudh Kaushal·January 15, 2025What Does Accept-All/Catch-All Mean in NeverBounce?
Understanding accept-all and catch-all email results in NeverBounce. Learn what these classifications mean and how to handle them for better deliverability.
Nick Abraham·November 20, 2024
A detailed comparison of NeverBounce and ZeroBounce email verification services. Compare features, pricing, accuracy, and catch-all handling.
Nick Abraham·November 15, 2024161 articles found
How to Check If Your Domain or IP Is on an Email Blacklist (and Get Removed)
If your emails suddenly stop landing in the inbox, a blacklist is often the reason. Here is how DNS blacklists work, how to check whether your domain or sending IP is listed, and the exact steps to get delisted and stay off.
Amit S.·July 24, 2026
How to Reduce Your Spam Complaint Rate and Stay Under Gmail and Yahoo Limits
Gmail and Yahoo now enforce a hard spam complaint ceiling of 0.3 percent, and crossing it can throttle or block your mail overnight. Here is what the complaint rate really measures, why it climbs, and the practical playbook for keeping it safely below the line.
Nick Abraham·July 23, 2026
Email List Decay: Why Your List Goes Stale and How to Fix It
Every email list rots a little more each month, even the good ones. People change jobs, abandon inboxes, and switch providers, and roughly a quarter of your addresses go bad every year. Here is why list decay happens, how to measure it, and the routine that keeps a list healthy.
Amit S.·July 22, 2026
Validate Salesforce Contacts Before Email Campaigns to Reduce Bounces
Salesforce contact records decay fast, and sending to stale addresses tanks your sender reputation. Here is how to validate your Salesforce list before every campaign.
Kristel K.·July 21, 2026
Why You Need a Separate Domain for Cold Email (and How to Set One Up)
Sending cold outreach from your main company domain puts your entire business at risk. Here is why a dedicated sending domain protects your primary reputation, and a step-by-step guide to setting one up correctly.
Nick Abraham·July 20, 2026
Why Your Emails Land in the Gmail Promotions Tab (and How to Reach the Primary Inbox)
The Promotions tab is not spam, but for cold outreach and one-to-one sales email it may as well be. Here is how Gmail decides which tab your message lands in, and the practical levers that move you back toward Primary.
Nick Abraham·July 19, 2026
Transactional Email Deliverability: Best Practices to Reach the Inbox Every Time
Password resets, receipts, and welcome emails are too important to land in spam. Here is how to protect transactional email deliverability with the right sending infrastructure and list hygiene.
Amit S.·July 19, 2026
Email Suppression Lists: What They Are and How to Use Them to Protect Sender Reputation
A suppression list is the quiet workhorse of good deliverability. It stops you from mailing addresses that will hurt your reputation before a single message goes out. Here is what belongs on one, how to build it, and the mistakes that put your inbox placement at risk.
Nick Abraham·July 18, 2026
Email Feedback Loops (FBL): The Setup Guide to Protect Your Sender Reputation
When a recipient hits the spam button, most senders never find out who complained. Feedback loops close that gap by reporting complaints straight back to you. Here is what FBLs are, which providers offer them, and how to set them up.
Kristel K.·July 17, 2026
Spam Traps: What They Are, How They Land on Your List, and How to Get Them Off
A single spam trap can quietly tank your sender reputation and route your whole campaign to the junk folder. Here is what spam traps are, the different types, how they end up on your list, and how to keep them out for good.
Amit S.·July 17, 2026
Bulk Email Validation API: A Developer's Guide to Clean Lists at Scale
Building email validation into your product or pipeline? This guide covers how bulk email validation APIs work, what to look for when choosing one, and how to integrate Scrubby's API to handle catch-all and risky addresses the right way.
Amit S.·July 16, 2026
MillionVerifier vs ZeroBounce vs Scrubby: Which One Actually Verifies Catch-All Emails?
MillionVerifier, ZeroBounce, and Scrubby all promise a cleaner list, but they diverge sharply on the addresses that matter most: catch-all and risky mailboxes. Here is how the three tools handle the hard cases, and where each one earns its place in your stack.
Amit S.·July 15, 2026Stay Updated on Email Validation
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