Mailgun vs SendPortal: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Mailgun
Mailgun is a powerful email API service that helps developers send, receive, and track emails effortlessly with reliable delivery.
SendPortal
SendPortal is a free open-source email marketing platform that lets you manage newsletters and campaigns on your own server.
Mailgun
Mailgun is a powerful email API service that helps developers send, receive, and track emails effortlessly with reliable delivery.
SendPortal
SendPortal is a free open-source email marketing platform that lets you manage newsletters and campaigns on your own server.
Mailgun
RESTful API and SMTP relay for flexible integration
Real-time email tracking and analytics
Email validation and deliverability optimization
Inbound email routing and parsing
Webhook notifications for instant event updates
Multi-language SDK support (Python, PHP, Java, Ruby)
Dedicated IP addresses available
Email authentication (SPF, DKIM, DMARC)
Template management and suppression handling
99.99% uptime guarantee
SendPortal
Free and open-source software
Self-hosted on your own server
Unlimited subscribers and campaigns
CSV and API subscriber imports
Custom audience segments
Email template builder
Automatic tracking of opens and clicks
Multiple workspace support
Integration with major email services
Complete data ownership
No monthly fees or hidden costs
Mailgun
Mailgun offers flexible pricing plans to suit different business needs and email volumes. The Free plan allows 100 emails per day, perfect for testing and small applications.
Paid plans include:
Flex Plan: Pay-as-you-go at $0.80 per 1,000 emails after 3 free months, ideal for unpredictable volumes
Foundation Plan ($35/month): 50,000 emails with basic features and 5-day log retention
Growth Plan ($80/month): 100,000 emails with enhanced support and 15-day log retention
Scale Plan ($90/month): 100,000 emails plus email validation, dedicated IPs, send time optimization, and 30-day logs
Enterprise: Custom pricing for high-volume senders with dedicated support and advanced features
All plans include unlimited users, API access, and basic tracking. Higher-tier plans add dedicated IPs, longer log retention, priority support, and advanced deliverability features. Overage pricing decreases with higher-tier plans.
SendPortal
SendPortal is completely free to download and use. There are no subscription fees, no per-subscriber charges, and no feature limitations. The software is open-source and licensed under MIT, which means you can use it for any purpose, including commercial projects.
However, you will need to cover two costs:
Hosting: You need a web server to run SendPortal. This could be a shared hosting account, VPS, or cloud server. Costs vary from $5 to $50 monthly depending on your needs and traffic.
Email Sending Service: SendPortal connects to third-party services to send emails. Amazon SES costs around $0.10 per 1,000 emails. Mailgun offers 5,000 free emails monthly, then $0.80 per 1,000. These services are much cheaper than traditional email marketing platforms.