Detects role-based addresses like info@ or support@ that route to groups rather than individuals, minimizing engagement issues and spam risks. Identifies emails from free providers such as Gmail or Yahoo to separate personal from business accounts.
Handles grey listing by spotting temporary server blocks and retrying validation, ensuring valid addresses aren’t marked invalid. Flags disposable or one-time-use emails to block fake sign-ups and maintain list quality. Distinguishes between permanently invalid addresses and temporary issues such as full mailboxes or busy servers.