The Blog
Hard-won lessons on email verification, inbox placement, and keeping your sender reputation spotless — from the team that's been verifying email since 2000.
Anti-spam laws and compliance: CAN-SPAM, GDPR, CASL
Ensure compliance with Spain’s LOPDGDD and LSSI email marketing consent rules. Verify your list quality and reduce legal risk with accurate email.
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Ensure your combined RCS and email outreach lands in the inbox. Use real-time verification and inbox testing to reduce bounces and boost engagement with.
Fix Outlook 451 4.7.650 sender reputation temporarily lowered errors. Reduce bounces, improve inbox placement, and prevent blocking with proven.
Monitor email delivery failures in real time and trigger automated alerts with MailTester. Reduce bounces, improve inbox placement, and maintain sender.
Learn how changing your From name mid-campaign affects sender reputation, deliverability, and inbox placement.
Overcome email deliverability issues caused by unpredictable Kubernetes egress IPs. Test inbox placement, verify sender reputation, and clean your list.
Securely verify email addresses using Gmail SMTP with OAuth2 for high deliverability. Reduce bounces and improve inbox placement with real-time checks.
Discover how hosting provider ASN reputation and shared IP neighborhoods impact email deliverability.
Detect and fix broken SPF, DKIM, or DMARC records before they harm deliverability. Use real-time verification to prevent inbox placement drops.
Compare SMTP2Go vs Postmark deliverability with real data. Reduce bounces, avoid spam traps, and improve inbox placement using MailTester's verification.
Prevent gateway-level bot email spam using real-time verification APIs. Reduce bounces, protect sender reputation, and improve inbox placement with.
Understand the true meaning of read rate in email campaigns. Learn how it differs from open rate, why panel read rates can mislead, and how to improve.
Stay sharp
Occasional, practical notes on verification and inbox placement. No spam — we'd be embarrassed.
