Documentation from various CRM and marketing automation platforms such as LeanData, Salesforce, HubSpot, Marketo, and Pardot indicates that B2B data capture forms reject records with mismatched website and email domains primarily to ensure data accuracy, improve lead quality, and streamline marketing and sales efforts. Domain matching is used to maintain data integrity, accurately associate leads with existing accounts in CRM systems, and ensure that leads are genuinely affiliated with the correct organization. This contributes to more effective lead routing, segmentation, personalization, and lead scoring, ultimately improving marketing ROI and facilitating better targeting and lead nurturing.