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Loops vs Mailcow

A detailed comparison to help you choose between Loops and Mailcow.

Quick Verdict

4.9/5

Loops

240 reviews

4.0/5

Mailcow

391 reviews

Loops is rated higher (4.9 vs 4.0). 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. Mailcow is a free, open source email server suite running on Docker. Complete mail server with anti-spam, anti-virus, webmail, SOGo, and admin panel. Self-host on any VPS.

Loops

Loops

SMTP service built for transactional email at scale

Mailcow

Mailcow

Self-hosted email server with Docker

Overview
Rating4.9 (240 reviews)✓4.0 (391 reviews)
Pricing modelfreemiumfree
Starting priceFree tier availableFree
Best forSaaS teams and developers needing dependable transactional email delivery without the overhead of self-hosted SMTP infrastructure.System administrators wanting a free, complete self-hosted email server with Docker-based deployment
Tags
Tags
free tierapi access
free tieropen sourceself hostable
Visit Loops →Visit Mailcow →

Loops

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
View full Loopsreview →

Mailcow

Pros

  • + Complete mail server suite for free
  • + Docker-based — easy deployment
  • + Active open source community

Cons

  • - Requires server management expertise
  • - IP reputation management on your server
View full Mailcowreview →

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