Deliverability is a critical factor in the success of your email campaigns. Robust ESPs improve deliverability through several methods:
Reputation Management: They maintain good relationships with ISPs and follow industry best practices to ensure high deliverability. Authentication: They support authentication protocols like SPF, DKIM, and DMARC to verify the legitimacy of your emails. List Hygiene: Tools for managing and cleaning email lists help remove inactive or invalid email addresses, reducing bounce rates.