Advanced Email Validation

Maintaining clean, up-to-date contact lists is essential to preserving a strong sender reputation and ensuring your campaigns land directly in the inbox. With major mailbox providers like Gmail and Yahoo enforcing increasingly strict deliverability policies, repeatedly sending messages to inactive, non-existent, or risky addresses can severely damage your domain’s sending score.

Basic vs. Advanced Validation

Multi-Level Validation Layers

Our Advanced Email Validation module analyzes every email address through a deep, 4-tier process:

1. Infrastructure & Technical Checks

   • Advanced Syntax Validation: Detects typos, improper formatting, and illegal characters in the email address.
   • DNS & MX Record Verification: Confirms that the target domain exists, is active, and has valid mail servers configured to receive messages.
   • Real-Time SMTP Ping: Simulates the start of a direct connection with the recipient's mail server to confirm the inbox actually exists without sending a real email.

2. Mailbox Feature Classification

   • Mailbox Status: Identifies disabled accounts or mailboxes that will bounce due to storage capacity issues.
   • Role-Based Accounts: Detects generic addresses assigned to departments or roles rather than individuals (e.g., info@, support@, admin@, sales@), which tend to dilute overall campaign engagement.
   • Disposable & Temporary Emails: Filters out throwaway addresses created through temporary email services to bypass sign-up forms.

3. Advanced Domain Configuration Detection

   • "Catch-All" Domain Identification: Identifies domains configured to accept any incoming email (even non-existent local addresses).
   • Google Workspace & Microsoft 365 Optimization: Analyzes complex catch-all setups on major enterprise providers to significantly reduce "Unknown" status results.

4. Toxicity Analysis & Reputation Protection

   Assigns a custom toxicity score to each contact to safeguard your sending reputation:

   • Spam Traps: Identifies honeypot addresses used by ISPs and anti-spam organizations to flag high-volume senders with poor list hygiene.
   • Complainers & Litigators: Detects users with a history of marking emails as spam, as well as accounts associated with entities prone to legal disputes (e.g., CAN-SPAM or GDPR compliance issues).
   • Breached Emails: Flags addresses that frequently appear in public data breaches or leaked internet databases.

How to Get Started

Advanced Email Validation is a paid add-on available to indigitall clients. Because it requires custom project configuration tailored to your company's sending volume, it is disabled by default and cannot be enabled through the standard admin console.

To activate this feature and safeguard your deliverability metrics, please reach out to the Support team or contact your dedicated Account Manager.