Yes, both sift.email and mailfloss offer a Free Trial.
sift.email is designed for Large Enterprises, Medium Business and Small Business.
mailfloss is designed for Large Enterprises, Medium Business and Small Business.
The starting price of sift.email begins at $5, while pricing details for mailfloss are unavailable.
Some top alternatives to sift.email includes BriteVerify, Bounceless, Email List Verify, Verimail, Bouncer, TrueMail, Email Checker, QuickEmailVerification, EmailVerifier, CleanMyMails and Email List Validation.
Some top alternatives to mailfloss includes and undefined.