Email Verification
The process of validating that an email address is real, properly formatted, and can receive emails.
Definition
Email verification is the process of checking whether an email address is valid and capable of receiving messages. This typically involves syntax checking, domain validation (MX record lookup), and sometimes mailbox verification. Verification helps maintain list quality by identifying invalid, fake, or risky email addresses before you send to them.
Why It Matters
Sending to invalid addresses wastes resources and damages sender reputation through bounces. Verification before sending reduces bounce rates, improves deliverability, and protects your reputation. It is especially important when importing lists or collecting emails from public forms.
How It Works
Verification services perform multiple checks: syntax validation (is the format correct?), domain check (does the domain exist and accept email?), and sometimes SMTP checks (can the mailbox receive email?). Results indicate whether addresses are valid, invalid, risky, or unknown.
Best Practices
- 1Verify new email addresses before adding them to your main list
- 2Re-verify your list periodically to catch addresses that have become invalid
- 3Use real-time verification on signup forms to catch typos
- 4Remove high-risk addresses identified during verification
Built-in Email Verification
Sequenzy automatically verifies emails to keep your list clean and your deliverability high.
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