Mailgun is described as 'Is email automation for developers. Use our REST APIs to effortlessly send, receive and track email from your website or application' and is an website in the development category. There are more than 50 alternatives to Mailgun, not only websites but also apps for a variety of platforms, including SaaS, Self-Hosted, Windows and iPhone apps. The best Mailgun alternative is Sendgrid, which is free. Other great sites and apps similar to Mailgun are SENDER, SendPulse, Amazon Simple Email Service and SMTP.com.
ZeptoMail is a transactional email service. Transactional emails are important emails sent from your business. It acknowledges a transaction between you and your customers, like, OTP emails, order confirmation emails, password reset emails etc.
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