transactional email

Best Transactional Email APIs for Developers (2026): SES vs Resend vs Postmark vs Mailgun vs SendGrid

Password resets, sign-up confirmations, receipts and shipping alerts are the emails users actually wait for. If one of them lands in spam or shows up ten minutes late, someone opens a support ticket or abandons the checkout. That is why most development teams stop sending through their own SMTP server and hand the job to…