The Impact of Invalid Emails on Deliverability
Why cleaning your email list is not just about saving money—it's about saving your domain reputation.
Bounce Rate and Reputation
A high bounce rate signals to ISPs that you are a spammer or have poor list hygiene. If your hard bounce rate exceeds 2%, most professional ESPs (like Mailjet or SendGrid) will suspend your account.
The Financial Cost of Bad Data
Most email services charge by the number of contacts or emails sent. Sending to 10,000 "dead" emails isn't just hurting your reputation—it's wasting your marketing budget every single month.
Role of Email Validation
Using an email checker online helps you identify invalid addresses before you send. Our tool performs "Deep SMTP Verification," connecting to recipient servers to see if the mailbox actually exists without ever sending an actual message.
Related Articles
What is an SPF Record?
Learn why SPF records are crucial for your email deliverability and how to set them up.
MX Records: The Backbone of Email
Understanding how Mail Exchange records work and how to troubleshoot them.