Features

Syntax & MX validation

Checks the format, domain, MX record and catch-all

Non-intrusive SMTP ping

Confirm that the mailbox really exists without sending an email.

Role & disposable address detection

Filter out support@, admin@, temporary accounts and +spam aliases.

Syntax, DNS and MX checks plus a secure SMTP ping

No: your lists are deleted when the corresponding email record is deleted by the user.

No, with the unlimited plan you can make as many requests as you need.