SMTP relay service providers, like Sendinblue, SendGrid, and Amazon SES, facilitate the efficient and secure transmission of emails. Sendinblue offers a user-friendly interface and is suitable for small to medium-sized businesses. SendGrid, known for high deliverability, is scalable and integrates well with various platforms. Amazon SES, part of Amazon Web Services, provides a reliable and cost-effective solution for businesses of all sizes.
https://smtpget.com/smtp-service-provider/