Blog · Best Practices
Best Practices Posts
Tips and standards for better email validation.
AI Email Tools Can Hit 45:1 ROI — But Only If Your Data Is Clean
New Validity research shows marketers with deeply-integrated AI are 75% more likely to hit 45:1 email ROI. Only 12% have gotten there. Poor data quality is the quiet killer — here is what to fix before scaling your AI stack.
Email Validation for Marketing Agencies: Protect Clients and Prove ROI
Agencies send on behalf of dozens of clients. One dirty list tanks deliverability for everyone on your sending infrastructure. Here is how to make email validation a standard part of every client engagement.
Why Your Email List Decays 25% Every Year (and How to Fix It)
Your email list loses roughly a quarter of its value every year to job changes, abandoned inboxes, and domain churn. Here is why it happens and what to do about it.
Email List Hygiene for SaaS: Stop Paying to Email Dead Addresses
Your SaaS is sending thousands of emails per month to addresses that no longer exist. Every one costs you money, hurts your deliverability, and skews your metrics. Here's how to fix your list — and keep it clean automatically.
GDPR and Email Validation: What Developers Need to Know
Email validation touches personal data — which means GDPR has opinions about every API call you make. Here's exactly how to stay compliant without crippling your validation pipeline.
How to Prevent Fake Signups: A Developer's Playbook
Bots don't sleep, and a single campaign can flood your user table with thousands of fake accounts overnight. Here's a five-layer defense system you can ship this week.
Role-Based Email Addresses: Why info@ and admin@ Hurt Your Metrics
info@, support@, admin@ — they look real, they pass all the checks, and they'll tank your engagement metrics in silence. Here's why role-based addresses are a hidden list quality problem.
How to Reduce Email Bounce Rate: A Developer's Guide
Your ESP is one bad batch away from throttling your sending domain. Here's the engineering playbook for getting your bounce rate under 0.5% and keeping it there.
Email Typo Detection: Save Lost Signups with Smart Correction
Between 2% and 8% of users mistype their email address during signup. That's revenue walking out the door. Here's how to catch the typo and keep the user.