EmailSuccess vs Twilio SendGrid
EmailSuccess
emailsuccess.com
Twilio SendGrid
twilio.comSide by side
| Figure | EmailSuccess | Twilio SendGrid |
|---|---|---|
| Price from | €333.33/mo | $19.95/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 5 |
| Spec score · Transactional Email Software | 9.4 (#1) | 8.2 (#19) |
| Spec score · Transactional email services | 9.1 (#4) | 9.1 (#2) |
| Authentication | The product supports DKIM signing, SPF monitoring, DMARC compliance and TLS encryption controls. | The product page lists SPF, DKIM, DMARC, and TLS encryption among its email authentication and security features. |
| Dedicated IP option | Yes | Yes |
| Free plan | Yes | No |
| Headquarters | The listed headquarters are in Faenza, Ravenna, Italy, with offices also reported in Milan, Bologna and Paris. | San Francisco, CA |
| Purpose | It manages outbound email delivery, sending reputation, and changing authentication requirements. | Twilio SendGrid is a cloud-based SMTP provider and email delivery engine that sends email without customers maintaining their own email servers. |
| Support | The Free plan lists community forum support, while Standard and Enterprise list individual support. | Twilio offers professional services from email experts to help configure email, troubleshoot issues, and improve deliverability and open rates. |
Plans
Twilio SendGrid
- Free TrialFree
- Pay as you goFree
- Essentials$19.95 a month
- Pro$89.95 a month
- PremierPriced on request
In their own words
EmailSuccess
EmailSuccess is an on-premises mail transfer agent for enterprise email gateways and high-volume SMTP servers. It manages outbound delivery, sending reputation, and changing authentication requirements. Its deliverability engine analyzes ISP responses and adjusts delivery settings in real time. Flexible queues, multiple IP pools, and connection pooling support high-volume sending and traffic prioritization. Authentication features include DKIM signing, DMARC compliance, and SPF and SenderID monitoring; TLS delivery encryption can be governed by configurable rules. The product classifies and reports bounces and feedback loops, and can forward ISP spam complaints to another system. Sending and message analysis are supported through SMTP, input scripting and filtering, and REST and SOAP APIs. Management tools include VirtualMTA traffic segmentation, an SSH console, and a web interface for monitoring and message history. The Free plan costs nothing, billed annually, and lists 100,000 emails per day and two active IPs.
Twilio SendGrid
Twilio SendGrid Email API sends email through a cloud-based delivery service, so customers do not need to maintain their own email servers. Messages can be sent through its RESTful Web API, SMTP relay, or SMTP API, with open-source client libraries for C#, Go, Java, Node.js, PHP, Python, and Ruby. Tools include dynamic templates, an Email Validation API, deliverability insights, and email testing. The Email Activity API, Event Webhook, and Activity dashboard track deliveries, opens, clicks, bounces, unsubscribes, and spam reports. Security features listed include SPF, DKIM, DMARC, TLS encryption, and API keys that can be limited or revoked. Twilio states a 99% deliverability rate. A 60-day free trial is listed at free, with limits of 100 emails per day and 100 contacts. Pay as you go is free; Essentials starts at $19.95 a month and Pro at $89.95 a month. Each email to one recipient uses a credit, even if deferred or sent to spam. Twilio says SendGrid does not natively support HIPAA-compliant data transmission.