Commercial Products
Proprietary software that atech/postal can replace
SendGrid
SendGrid is a cloud-based platform for sending transactional and marketing emails at scale via API and SMTP.
Mailgun
Mailgun provides APIs and SMTP services for developers to send, receive, and track transactional emails reliably.
Postmark
Postmark is a reliable email delivery service focused on fast transactional emails using SMTP and API.
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