Help Center
26 articles to help you get the most out of Mailthentic.
Best Practices
3Email List Hygiene Best Practices
A clean email list is the foundation of successful email marketing. Here are proven strategies to maintain list quality and protect your sender reputation. 1. …
How Often Should You Verify Your Email List?
Email data degrades over time. On average, 22–30% of email addresses become invalid each year due to job changes, company closures, and abandoned accounts. Here's …
Improving Email Deliverability
Deliverability — the ability to reach the inbox rather than spam — depends on multiple factors. Email verification is a critical piece, but here's the …
FAQ
2Frequently Asked Questions
General Does Mailthentic send actual emails to verify addresses? No. Mailthentic uses the SMTP protocol to communicate with mail servers, but it never sends an …
Glossary of Email Verification Terms
A quick reference for terms used throughout Mailthentic and the email verification industry. Bounce (Hard) A permanent delivery failure. The recipient address doesn't exist …
Email Verification
5How Email Verification Works
Email verification is a multi-step process that determines whether an email address is valid, active, and capable of receiving messages. Mailthentic performs up to six …
Single Email Verification
Single verification lets you check one email address at a time. It's ideal for quick lookups, testing, or real-time validation during user signups. How to …
Bulk Email Verification: CSV Upload Guide
Bulk verification lets you upload a list of email addresses and verify them all at once. It's the fastest way to clean an entire mailing …
DNS-Only vs. SMTP Verification Modes
Mailthentic supports two verification modes. Understanding the difference helps you choose the right level of verification for your needs. DNS-Only Mode DNS-only verification checks everything …
Scheduling Recurring Verifications
Keep your email lists perpetually clean by scheduling automatic re-verifications on a regular basis. How Scheduled Jobs Work After completing a bulk verification job, you …
Account & Billing
3Managing Your Credits
Credits are the currency used for email verifications on Mailthentic. Here's everything you need to know about how credits work. How Credits Are Used …
Two-Factor Authentication (2FA)
Two-factor authentication adds an extra layer of security to your Mailthentic account by requiring a time-based code in addition to your password. Setting Up 2FA …
Teams and Workspace Management
Mailthentic supports team workspaces, allowing multiple users to share credits and collaborate on verification jobs. Creating a Team Go to Team Settings from your …
Understanding Results
5Understanding Verification Statuses
Every email Mailthentic verifies receives one of four top-level statuses. Here's what each one means and how you should act on it. Deliverable Safe …
Confidence Scores Explained
Every verification result includes a confidence score — a number that represents how certain Mailthentic is about the result. Higher scores mean greater certainty. Score …
Understanding Catch-All Domains
A catch-all domain (also called an "accept-all" domain) is configured to accept email sent to any address at that domain, whether the specific mailbox exists …
MX Provider Detection
Mailthentic analyzes MX records to identify the email service provider behind each domain. This detection influences how results are interpreted and scored. Detected Provider Types …
Understanding SPF, DKIM, and DMARC Results
Mailthentic checks three critical DNS authentication records for every domain. These records protect against email spoofing and are a key indicator of a domain's email …
Getting Started
4What Is Mailthentic?
Mailthentic is an email verification platform that helps businesses validate email addresses before sending campaigns. By checking whether an email address is real, active, and …
Creating Your Account
Getting started with Mailthentic takes less than two minutes. Here's how to create your account and start verifying emails. Step 1: Sign Up Visit …
Quick Start Guide: Your First Verification
This guide walks you through running your first email verification in under a minute. Single Email Verification Log in and navigate to Single Verification …
Navigating Your Dashboard
The Mailthentic dashboard is your command center for all verification activity. Here's a quick tour of what you'll find. Dashboard Overview The main dashboard page …
Troubleshooting
4Why Is My Verification Taking a Long Time?
Most single verifications complete in under 10 seconds, and bulk jobs process at high speed. However, some verifications take longer due to how remote mail …
Why Did I Get an "Unknown" Result?
An "unknown" result means Mailthentic couldn't get a definitive answer from the mail server. Here are the most common causes and what to do about …
Common Verification Errors and What They Mean
Here's a reference guide to the most common verification statuses and error conditions you may encounter. Invalid Statuses invalid_syntax Meaning: The email address doesn't follow …
Insufficient Credits: What Happens?
Understanding what happens when you run low on credits helps you avoid disruptions to your workflow. Single Verification If you try to verify an email …
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