MailKite Server vs turboSMTP
MailKite Server
mailkite.devturboSMTP
turbosmtp.comSide by side
| Figure | MailKite Server | turboSMTP |
|---|---|---|
| Price from | Free | €14.95/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 18 |
| Spec score · Email APIs | 8.4 (#8) | 8.7 (#3) |
| Integrations | MailKite lists official SDKs for Node.js, Python, Ruby, Go, PHP, Java, C#, and Rust, plus a CLI, an MCP server, and SMTP relay integrations. | A Zapier app launched with Send Email and Find Email Status actions for connecting CRMs, forms, spreadsheets and other Zapier applications. |
| SDKs | The official Node or TypeScript client can target a self-hosted server by setting its base URL. | Official C# and PHP SDKs are published as open-source libraries and cover sending, relay statistics, suppressions and email validation. |
| Security | Server components use HMAC-authenticated HTTP endpoints, and inbound webhook deliveries are signed and retried. | Pricing lists SPF/DKIM authentication, API keys, custom sending domains with SPF/DKIM/DMARC, and two-factor authentication as security and compliance features. |
| Support | The self-hosted server page directs users to GitHub discussions and setup documentation; it describes human support as a MailKite Cloud offering. | The company states that ticket, live-chat and phone support are available around the clock and handled by human staff. |
Plans
turboSMTP
- FreeFree
- Basic€14.95 a month
- Pro€79.95 a month
- Silver€49 a month
- Gold€92 a month
- Resell€270 a month
- Titanium€450 a month
- Diamond€790 a month
- FREEFree
- BASIC€14.95 a month
In their own words
MailKite Server
MailKite Server has no write-up on Specifiction yet; its figures are above.
turboSMTP
turboSMTP is a cloud SMTP service for sending email messages and newsletters, with statistical analysis for individual and aggregate messages. Its SMTP API supports transactional messages such as login confirmations, welcome messages, and receipts from a website or app. The dashboard tracks clicks and opens in real time, while listed tools manage bounces, spam, and unsubscribes. Deliverability features include smart routing, custom tracking domains, and email validation before campaigns. An email marketing tool can design, send, and track campaigns using turboSMTP delivery infrastructure. The service lists SMTP relay, email templates, delivery event webhooks, and a dedicated IP option; inbound email is not supported. It offers a free plan allowing 200 emails per day for the first six months. Basic costs €14.95 a month for 15,000 emails per month; Pro costs €79.95 a month for the same send limit and up to 100 subaccounts. Other listed plans sell email credits, which expire one year after purchase. Platforms include Android, API, iOS, and web. The maker advertises 24/7 multilingual support by phone, chat, and email.