$firstSeen
$firstSeen : string|null
A date string (e.g. 2017-04-24) to identify the date an email domain was first seen by MaxMind. This is expressed using the ISO 8601 date format.
Model containing information about the email domain.
$firstSeen : string|null
A date string (e.g. 2017-04-24) to identify the date an email domain was first seen by MaxMind. This is expressed using the ISO 8601 date format.