Pricing API Docs Integrations

21cs.biz

is not a disposable email

Can 21cs.biz receive emails?

Yes, 21cs.biz can receive emails.

Should you allow users to sign up to your website using the domain 21cs.biz?

Yes, 21cs.biz seems to be a legitimate domain.

DNS Records

A record

None

MX records

Hostname
IP
mx.zohomail.com 204.141.43.221 mx2.zohomail.com 204.141.43.222

Domain Directory