SendGrid vs Mailgun
A detailed comparison to help you choose between SendGrid and Mailgun.
Quick Verdict
3.7/5
SendGrid
0 reviews
3.7/5
Mailgun
0 reviews
Both SendGrid and Mailgun are equally rated at 3.7/5. SendGrid by Twilio handles both transactional and marketing email at massive scale. REST API, SMTP relay, webhook events, and dedicated IPs on Pro and Premier plans. Mailgun is a developer-focused email API service owned by Sinch. Inbound email parsing, email validation API, and detailed analytics. Popular for startups building email features into their apps.
SendGrid Twilio's email API for developers at scale | Mailgun Email API for developers — by Sinch | |
|---|---|---|
| Overview | ||
| Rating | 3.7 (0 reviews) | 3.7 (0 reviews) |
| Pricing model | freemium | freemium |
| Starting price | Free tier available | Free tier available |
| Best for | Product teams and SaaS businesses sending transactional and marketing email at scale who want deliverability tooling handled for them | Developers and SaaS teams sending transactional email from applications who also need inbound email parsing, validation, and deliverability tooling |
| Features | ||
| IPv6 | ||
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ||
| Free tier | ||
| Tags | ||
| Tags | free tierapi access | free tierapi access |
| Visit SendGrid → | Visit Mailgun → | |
SendGrid
Pros
- + Mature developer platform: SMTP relay, REST API, client libraries, dynamic templates and event webhooks
- + Complete deliverability tooling — validation API, suppression management, link branding, reverse DNS, universal links
- + Published volume pricing from $19.95/month with per-email overages that fall as volume grows
- + Proven at extreme scale (Twilio claims 183+ billion emails per month) with a free trial requiring no credit card
- + Marketing Campaigns and transactional sending under one vendor and one bill
Cons
- - Support on low tiers is a ticket queue — slow when an incident is blocking production email
- - Strict enforcement on complaint rates and bounces means suspensions land at the worst moment
- - Dedicated IPs and validation credits are gated at Pro ($89.95/month), so real costs jump past Essentials
- - Free-tier terms are ambiguous across Twilio pages (60-day trial versus legacy free SMTP plan)
- - Pure per-thousand cost at high volumes is beaten by raw APIs such as Amazon SES
Mailgun
Pros
- + Inbound email parsing on every plan, including Free — the strongest developer-side feature in this category
- + Published four-tier pricing with explicit overage rates ($15/$35/$90 per month tiers)
- + Credit-backed 99.99% availability SLA on API, SMTP, and outbound delivery
- + US or EU (Ireland) sending regions per account, with GDPR/HIPAA/SOC/ISO 27001 compliance paperwork
Cons
- - One day of log retention on Free and Basic — debugging old delivery issues is impossible without exporting logs
- - Chat and phone support only on the $90/month Scale tier; support quality under Sinch ownership draws community criticism
- - Dedicated IPs cost extra below high volumes (third-party listings quote ~$59/IP/month)
- - US operating entity under a Swedish parent — CLOUD Act exposure remains for privacy-sensitive EU buyers
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