Data Attributes

​Email Verifier Attributes

Tomba's Email Verifier returns a comprehensive set of attributes to determine the validity and quality of an email address.

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​Email Verification Fields

Attribute	Description	Example
email	The email address that was verified.	b.mohamed@tomba.io
status	General status of the email syntax and lookup It takes 1 out of 6 possible values:valid,invalid,accept_all,webmail,disposable,unknown.	valid
result	Final verdict on deliverability. It takes 1 out of 3 possible values: deliverable,undeliverable,risky.	deliverable
score	Confidence score from 0 to 100. Higher score = better quality.	100
regex	Checks if the email matches standard email pattern.	true
mx_records	Whether MX (Mail Exchange) DNS records were found.	true
smtp_server	Whether an SMTP server was found for the domain.	true
smtp_check	Whether the SMTP server responded positively to the email probe.	true
accept_all	Whether the domain accepts all emails (catch-all).	false
block	Whether the domain is blocked or blacklisted.	false
gibberish	Whether the local part (before @) of the email looks random/gibberish.	false
disposable	Whether the email comes from a disposable (temporary) provider.	false
webmail	Whether the domain is a webmail provider (e.g., Gmail, Yahoo).	false

​Email Status Field

The status field in Tomba's email verification response indicates the deliverability and quality of the provided email address. It can take one of the following six possible values:

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​Possible Status Values

Status	Description
valid	The email address is valid and deliverable.
invalid	The email address is not valid or does not exist.
accept_all	The domain accepts all email addresses regardless of their validity.
webmail	The email address is from a public email provider (e.g., Gmail, Outlook).
disposable	The email is from a temporary/disposable service (e.g., Mailinator).
unknown	Tomba could not verify the email address due to a technical issue.

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​Notes

• accept_all domains may give false positives. Use the score and other signals to decide confidence.
• unknown status may be caused by SMTP timeouts, greylisting, or temporary blocks.
• The status value is always returned along with result, score, and smtp_check for more context.

​Email Result Field

The result field summarizes the overall outcome of the email verification check. It is based on factors such as syntax, MX records, SMTP checks, and domain behavior.

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​Possible Result Values

Result	Description
deliverable	The email address is valid and deliverable.
undeliverable	The email address is not valid and cannot be delivered to.
risky	The verification could not be fully confirmed, often due to catch-all domains, greylisting, or timeout issues.

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​Notes

• deliverable means the address is safe to send emails to.
• undeliverable suggests the address is invalid or the server rejected it.
• risky requires caution—combine with score and accept_all for a more accurate decision.

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