To clearly identify the company and to confirm sender authenticity, we recommend generating a DKIM signature and SPF entries. It is recommended to use an integrated SMTP server of our partner to improve the sending efficiency and security. Improve deliverability by choosing between built-in server or external SMTP servers. It is an affordable and cost-effective marketing tool.Įvery entrepreneur, marketer, and user will appreciate the ability to integrate any external SMTP services into the bulk mailer. Effective email marketing is often impossible without a quality SMTP server for bulk emails.Ītomic Mail Sender with built-in SMTP solution is an ideal choice for companies that plan to send bulk emails.