What it entails

Email Checks validate the email's format and its MX records. They classify the email provider type and free vs. paid accounts, and analyze user-portion randomness. Email checks build a holistic legitimacy score for each address.

Why it works

Fraudsters spin up newly created, disposable, or invalid emails to evade linkage and detection. Randomized or stale addresses with poor deliverability are strong indicators of one-time scam setups.

Checks

The following are the distinct IDs and types of checks that are included in the Email Check Package.

EMAIL_FREE_ACCOUNT

Whether the email account is free.

Value	Name	Description
`TRUE`	Free email provider	A medium-risk email address, often tied to free email services.
`FALSE`	Non-free email provider	The email address is not from a free provider, indicating a potentially legitimate account.
`NONE`	No email address provided	No email address provided.

EMAIL_USER_PORTION

Pattern of the email’s user portion.

Value	Name	Description
`ALPHANUMERIC_RANDOM`	Alphanumeric random user portion	The user portion appears random or has a mix of letters and numbers that don’t clearly represent a name or organization.
`NAME_OBSCURED`	Name obscured in user portion	The user portion contains a name that is obscured or altered, which may indicate an attempt to hide true identity.
`ROLE_BASED`	Role-based email address	The user portion refers to a specific role or department, suggesting shared or non-personal use.
`KEYWORD_THEMED`	Keyword-themed email mailbox	The user portion includes a meaningful word or phrase unrelated to personal identifiers but thematic in nature.
`SHORT_SIMPLE`	Short and simple email mailbox	Short, simple user portions, often seen in personal or early email accounts.
`NAME_BASED`	Name-based email mailbox	The user portion contains the user’s name, initials, or recognizable personal identifier.
`NONE`	No email address provided	No email address provided.

EMAIL_TYPE

Type of email provider.

Value	Name	Description
`DISPOSABLE`	Disposable email provider	A very high-risk email address, as disposable emails are frequently used for fraudulent activities.
`BUSINESS`	Business email provider	Business emails are not typically used for consumer-level activities.
`PERSONAL`	Personal email provider	Personal or consumer-level account.
`GOVERNMENT`	Government email provider	A medium-risk email address, often tied to government institutions.
`EDUCATIONAL`	Educational email provider	Educational emails are not typically used for consumer-level activities.
`UNKNOWN`	Unknown email provider	The email provider type could not be determined, so the risk level is slightly elevated.
`NONE`	No email address	No email address provided.

EMAIL_DELIVERABILITY

Deliverability status of the email.

Value	Name	Description
`NONE`	No email address provided	No email address provided.
`FALSE`	Email address undeliverable	The email address is undeliverable, which could indicate a potential fraud attempt.
`LOW_ENGAGEMENT`	Email address low engagement	Email address deliverable but is unlikely to engage with unsolicited communications.
`UNKNOWN`	Email address deliverability unknown	The email address deliverability status is unknown, which could indicate a potential fraud attempt.
`TRUE`	Email address deliverable	The email address is deliverable and appears to be legitimate.

EMAIL_NO_MX_RECORD

Presence of MX DNS record.

Value	Name	Description
`TRUE`	No MX record	The email address does not have an MX record, which could indicate a potential fraud attempt.
`FALSE`	MX record present	The email address has an MX record, indicating it is likely valid.
`UNKNOWN`	MX record unknown	The email address MX record status is unknown, which carries some risk.
`NONE`	No email address provided	No email address provided.

EMAIL_INVALID

Validity of email format.

Value	Name	Description
`TRUE`	Invalid email address	The email address is invalid, which could indicate a potential fraud attempt.
`FALSE`	Valid email address	The email address is valid and appears to be legitimate.
`NONE`	No email address provided	No email address provided.