Confirm email or email verification later?

1. What is email validation and verification?
2. Should I use email verification?
3. What is email verification process?

What is email validation and verification?

Email validation is a process of verifying email addresses to catch any nonexistent, invalid, undeliverable ones, and remove them from your list.

Should I use email verification?

Email validation helps you identify these before you actually send an email. If you keep sending to undeliverable addresses, your emails could end up getting blocked at key internet service providers.

What is email verification process?

Email verification is the process of checking and authenticating emails that you've been given to ensure that they're authentic and that they're likely to connect you to a real person (or, at the least, a real email account of an organization).