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.
Inbox placement by mailbox provider: Gmail, Outlook, Yahoo and spam filters
Test if your cold emails land in inboxes—before you send. Use real-time inbox placement testing to avoid spam folders and improve campaign deliverability.
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Clean your list and improve deliverability by integrating MailTester with Customer.io. Verify emails in bulk, reduce bounces, and boost inbox placement.
Ensure your media company’s high-volume newsletters reach inboxes. Use real-time verification and bulk checks to reduce bounces, improve deliverability, and p
Ensure high delivery and engagement in hotel loyalty emails with precise validation. Reduce bounces, avoid spam traps, and improve inbox placement using proven
Ensure every email sent from WordPress lands in the inbox. Use MX lookup and domain verification to fix deliverability issues before they impact your list healt
Improve Keap email deliverability with real-time email verification API. Reduce bounces, boost inbox placement, and maintain sender reputation with accurate, sc
Ensure your electronic patient consent forms reach inboxes. Test deliverability, reduce bounces, and improve compliance with real-time verification and inbox pl
Boost your edtech email open rates with inbox-placement testing. Identify deliverability issues before sending and ensure messages land in inboxes, not spam.
Understand how double opt-in and single opt-in impact GDPR and CAN-SPAM compliance. Reduce bounces, avoid penalties, and improve list hygiene with real verifica
Improve inbox placement with proven SaaS email validation tools. Reduce bounces, boost sender reputation, and verify lists at scale with real-time API verificat
Learn how to safely implement a relaxed DMARC policy during email migration. Avoid bounces, preserve deliverability, and verify email health with real-time tool
Ensure your real estate agent campaigns reach inboxes. Test deliverability, reduce bounces, and improve engagement with real-time verification and inbox placeme
Stay sharp
Occasional, practical notes on verification and inbox placement. No spam — we'd be embarrassed.
