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My Email Communications Security Assessment (MECSA)

Scoring criteria

How is the CONFIDENTIAL DELIVERY score calculated?

To evaluate this feature we focus on the establishment of trustable encrypted communication channels between the sender MTA and the recipient MTA.

How is the PHISHING and IDENTITY THEFT score calculated?

To evaluate the protection against phishing and identity theft, we focus on the usage of standards that would allow providers to publicise lists of authorized domains, as well as determine if a message received was sent from an authorized domain.

How is the INTEGRITY OF MESSAGES score calculated?

To evaluate the integrity we focus on the generation and validation of digital signatures that can be used to prove the origin of a message (which MTA sent it), and that the message has not been modified in transit.

1. How is the CONFIDENTIAL DELIVERY score calculated?

StartTLS x509 SPF DKIM DMARC DANE DNSSEC MTA-STS
Green star Green star Green star Green star Green star
Green star Green star Green star Green star Green star
Green star Green star Green star Green star Empty star Error icon Error icon
Green star Green star Green star Half-green star Empty star Error icon Error icon
Orange star Orange star Half-orange star Empty star Empty star Error icon Error icon Error icon Error icon
Empty star Empty star Empty star Empty star Empty star Error icon

2. How is the PHISHING and IDENTITY THEFT score calculated?

StartTLS x509 SPF DKIM DMARC DANE DNSSEC MTA-STS
Green star Green star Green star Green star Green star
Green star Green star Green star Green star Half-green star
Green star Green star Green star Green star Half-green star
Green star Green star Green star Green star Empty star
Green star Green star Green star Green star Empty star Error icon
Green star Green star Green star Green star Empty star Error icon
Green star Green star Green star Green star Empty star Error icon
Green star Green star Green star Green star Empty star Error icon
Green star Green star Green star Half-green star Empty star Error icon
Green star Green star Green star Half-green star Empty star Error icon Error icon
Green star Green star Green star Half-green star Empty star Error icon
Green star Green star Green star Half-green star Empty star Error icon
Green star Green star Green star Half-green star Empty star Error icon Error icon
Orange star Orange star Half-orange star Empty star Empty star Error icon Error icon
Orange star Orange star Half-orange star Empty star Empty star Error icon Error icon
Orange star Orange star Half-orange star Empty star Empty star Error icon Error icon
Red star Red star Empty star Empty star Empty star Error icon Error icon
Red star Red star Empty star Empty star Empty star Error icon Error icon
Red star Red star Empty star Empty star Empty star Error icon Error icon
Red star Half-red star Empty star Empty star Empty star Error icon Error icon Error icon
Red star Half-red star Empty star Empty star Empty star Error icon Error icon Error icon
Red star Half-red star Empty star Empty star Empty star Error icon Error icon Error icon
Empty star Empty star Empty star Empty star Empty star Error icon Error icon Error icon Error icon

3. How is the INTEGRITY OF MESSAGES score calculated?

StartTLS x509 SPF DKIM DMARC DANE DNSSEC MTA-STS
Green star Green star Green star Green star Green star
Green star Green star Green star Green star Empty star
Green star Green star Green star Half-green star Empty star Error icon
Orange star Orange star Orange star Empty star Empty star Error icon
Orange star Orange star Half-orange star Empty star Empty star Error icon Error icon
Red star Red star Empty star Empty star Empty star Error icon
Red star Half-red star Empty star Empty star Empty star Error icon Error icon
Red star Empty star Empty star Empty star Empty star Error icon Error icon
Empty star Empty star Empty star Empty star Empty star Error icon Error icon Error icon