URL Forensics
Calculadora de suplantación de correo
SPF, DKIM and DMARC checks with clear recommendations. Free, without an account.
Seguridad de correo electrónico
¿Se puede suplantar este dominio?
Check the domain’s published defenses against forged sender addresses. See what is weak, what is unknown and how to improve it.
Standards: SPF RFC 7208 · DKIM RFC 6376 · DKIM key strength · DMARC RFC 9989