What are some alternatives?
When comparing Impressionwise and Emailmarker, you can also consider the following products
Email Verifier - Email verifier app lets you verify email.
Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
EmailRecon - Real-time email adddress validation and verification. The EmailRecon cloud list verification tool allows you to clean your email lists with a single click.
NoBounce Email List Cleaner - Email list validation & cleaning maximizes the efficiency of your email marketing campaigns and protects your email sender reputation.
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
MyEmailVerifier - MyEmailVerifier offers Email list verification & validation services with 95 % Accuracy Guaranteed. MyEmailVerifier's AI technology can detect catch-all and spam traps. Get started for free!