I’ve Tested and Compared SendGrid vs Mailgun: Here’s What I Found

SendGrid and Mailgun are email service providers offering SMTP and REST APIs, analytics, authentication tools, dedicated IP options, and support for transactional email, but they target somewhat different users. SendGrid, acquired by Twilio, emphasizes ease of use, marketing capabilities, extensive templates, campaign automation, integrations, and detailed analytics, making it suited to businesses that need both transactional and promotional email tools, although advanced features such as validation and dedicated IPs may require higher-priced plans. Mailgun, acquired by Pathwire, is more developer-oriented, with flexible usage-based scaling, email logs, isolated sending domains, strong deliverability-focused infrastructure, and a reported 99% attempted-delivery SLA for high-volume sends, but it has fewer marketing automation and design features and may require more technical expertise. In the cited shared-IP deliverability test, Mailgun achieved a higher inbox rate than SendGrid, while SendGrid showed a lower missing-email rate than Mailgun’s reported result. Both providers are presented as reliable and compliant with major privacy and security standards, with Mailgun receiving somewhat stronger user ratings for usability, support, scalability, and customer feedback, while SendGrid offers phone support on selected plans. The comparison ultimately recommends choosing based on technical requirements, budget, desired marketing features, deliverability needs, and anticipated sending volume, while also promoting Mailtrap as an alternative focused on transactional and bulk email delivery.

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