Domain: guerrillamail.com

Valid: Yes, but should be blocked

This domain is valid and should be able to receive e-mail.

Tested MX: mail.guerrillamail.com (167.114.101.158)

Using MX pointer mail.guerrillamail.com from DNS with priority: 0

Block: Yes

You should block this domain for signups/registrations.

Disposable: Yes

This looks like a temporary/disposable e-mail domain.

Detection method: Blacklist

This domain is specifically blacklisted. There are also multiple heuristics to automatically flag new domains.

Raw API reason:

Blacklist

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guerrillamail.com

Status: Disposable e-mail

 

Programmer?
Did you know we had a free API to validate e-mails and block guerrillamail.com?