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Loops

SMTP service built for transactional email at scale

4.9(240 reviews)freemiumFounded 2026
free tierapi access

Loops is an SMTP relay service that handles transactional emails with high deliverability. Designed for developers and SaaS platforms needing reliable email infrastructure without managing their own servers.

Loops provides managed SMTP hosting with real-time delivery tracking, bounce handling, and detailed analytics. Features include automatic retry logic, IP warming, spam testing, and integration with popular frameworks. Differentiator: focuses on developer experience with clear pricing and straightforward setup, avoiding complexity of traditional enterprise SMTP providers.

Pros

  • Send transactional emails reliably without maintaining SMTP infrastructure
  • Monitor delivery metrics and bounce rates in real-time dashboard
  • Integrate quickly via standard SMTP or REST API
  • Auto-handle bounces and manage sender reputation
  • Scale from thousands to millions of emails per month

Cons

  • Limited advanced segmentation compared to full marketing platforms
  • Smaller provider means fewer third-party integrations than competitors
  • Pricing scales linearly, less cost-effective at extremely high volumes

Best For

SaaS teams and developers needing dependable transactional email delivery without the overhead of self-hosted SMTP infrastructure.

Pricing

Free

Free
  • Core features included

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