--- title: "Spotler SendPro alternative for transactional emails in Europe" description: "Compare Lettermint vs Spotler SendPro for transactional email delivery. Both are based in the Netherlands, but Lettermint offers more features and a free plan." url: "https://lettermint.co/compare/spotler-sendpro-alternative" --- # Lettermint vs Spotler SendPro Spotler SendPro is a Dutch email provider, formerly known as Flowmailer. Lettermint is also based in the Netherlands, with a broader feature set and modern developer tools. ## Product | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | Transactional emails | Yes | Yes | | Broadcast emails | Yes | No | | Inbound emails | Yes | Yes | | Scheduled delivery | Yes (up to 30 days) | Yes | | Batch sending | Yes | No | | Attachments | 25MB per email | 30MB per email | | Open & click tracking | Yes | Yes | Scheduled delivery lets you schedule emails to be delivered at a specific date and time. ## Pricing | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | Free plan | Yes | No | | Starts at | €10/mo (10,000 emails) | €105/mo | | Startup / Student discount | Yes | No | | Billing in Euro | Yes | Yes | ## Infrastructure | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | Shared IPs | Yes | Yes | | Dedicated IPs | Yes | Yes | | Infrastructure | Managed infrastructure | Managed infrastructure | | Own ASN | Yes | Yes | | EU-based infrastructure | Yes | Yes | ## Developers | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | REST API | Yes | Yes | | SMTP relay | Yes | Yes | | Official SDKs | Node, PHP, Laravel, Go, Python, Java | Yes | | Webhooks | Yes | Yes | | CLI | Yes | No | | MCP | Yes | No | MCP lets AI agents connect to Lettermint via our Model Context Protocol (MCP) server. ## Security & compliance | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | DMARC | Yes | Yes | | DKIM | Yes | Yes | | Managed DKIM | Yes | Yes | | ISO 27001 certified | Yes | Yes | | Single Sign-On (SSO) | All paid plans | No | | Trust Center | Yes (trust.lettermint.co) | Yes | Managed DKIM means the provider hosts the DKIM key behind CNAME records and rotates it automatically. Lettermint replaces the key every six months without interrupting sending. A Trust Center is a public page with certifications, policies and continuously monitored security controls. Lettermint's is at https://trust.lettermint.co. Single Sign-On (SSO) lets your team log in through your organization's identity provider over SAML or OIDC. Lettermint includes it on every paid plan, with SCIM provisioning. ## Data sovereignty | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | GDPR compliant | Yes | Yes | | Data stays in EU | Yes | Yes | | Public subprocessor list | Yes (lettermint.co/subprocessors) | Yes | | DPA included | Applies automatically (lettermint.co/dpa) | Signed per customer | | Outside the US CLOUD Act | Yes | Yes | | Headquarters | Netherlands | Netherlands | | Ownership | Independent, founder-owned | Owned by CNBB Equity Partners (NL) | ## Support | Feature | Lettermint | Spotler SendPro | | -------------------------- | -------------------------- | -------------------------- | | Ticket support | Yes | Yes | | Email support | Yes | Yes | | Social media support | Yes | No | | Discord support | Yes | No | ## Migrating to Lettermint Most migration steps can be automated. A migration can be scripted end to end, or carried out by an AI assistant. - **[Team API](https://lettermint.co/docs/api-reference/team/)**: everything you can do in the dashboard, you can do via the API. Add domains, fetch the DNS records to configure, and trigger verification. Manage projects, webhooks, API tokens and suppressions. Retrieve statistics. Available as a REST API and as v2 SDKs for Node.js, PHP, Python, Go and Java. - **[MCP server](https://lettermint.co/features/mcp.md)**: AI agents get the same capabilities through the Model Context Protocol (MCP) server. An AI assistant can run the migration for you: add and verify domains, then configure projects and webhooks. - **Suppression import**: upload your current suppression list as a CSV. Known bounces and unsubscribes stay blocked from day one. - **SMTP relay**: sending over SMTP today? Switching means updating your SMTP credentials. No code changes. ## GDPR compliance review: Lettermint vs Spotler SendPro Spotler SendPro is a European provider too, so the country is not the difference. Digital sovereignty in practice is: Lettermint runs its own infrastructure in the EU and publishes its DPA, subprocessor list and ISO 27001 certification. You can check every claim document by document. Below are the facts your privacy or legal team will ask for. - **EU data residency**: email data is hosted, stored and processed in the EU on sovereign infrastructure Lettermint owns and operates, as a written commitment in the [DPA](https://lettermint.co/dpa.md). See [European email](https://lettermint.co/european-email.md). - **Data Processing Agreement**: Lettermint is your processor under Article 28 GDPR. The public [DPA](https://lettermint.co/dpa.md) covers security and audit rights and is countersigned on request. - **Subprocessors**: every subprocessor is listed publicly on the [subprocessors page](https://lettermint.co/subprocessors.md), with what it does and where it processes data. Changes are announced 30 days ahead. - **Your data stays yours**: email data is never used for model training, fine-tuning or research, and is processed only on your documented instructions. - **No longer than needed**: Lettermint keeps your data only as long as your account needs it. Close your account and everything is deleted, exactly as the DPA sets out. - **International transfers**: no transfers outside the EEA on Lettermint's initiative. Email to recipients outside the EU is delivered only at your instruction. - **Certification**: [ISO/IEC 27001:2022 certified](https://lettermint.co/blog/lettermint-iso-27001-certified.md). Security controls are continuously monitored, with live status, policies and certificates in the [Trust Center](https://trust.lettermint.co). - **EU jurisdiction, outside the CLOUD Act**: Lettermint B.V. is incorporated in the Netherlands under EU law, with no US parent company, so the US CLOUD Act does not reach your email data. ## Frequently asked questions ### Is Lettermint a good free alternative to Spotler SendPro for transactional emails? Yes. Lettermint offers a Free plan for [transactional emails](https://lettermint.co/features/transactional-emails) that you can keep using in production for as long as you fit within its limits. ### Can I use Lettermint for both transactional and marketing emails? Yes. Lettermint supports both transactional and marketing emails. Marketing emails are called [Broadcast emails](https://lettermint.co/features/broadcast-emails). You can send order confirmations, password resets, newsletters and promotional campaigns from one account. ### How does Lettermint compare to Spotler SendPro on deliverability? Lettermint sends from its own infrastructure and its own IP ranges (AS213427), so your sender reputation is not shared with unrelated tenants on a hyperscaler. Transactional and broadcast email run on separate IP pools. Instead of a claim, Lettermint publishes the numbers: the [Time to Inbox page](https://lettermint.co/time-to-inbox-tti.md) shows live measurements of how many seconds an email takes to reach Gmail, Outlook, Yahoo, iCloud and others. Compare those with what Spotler SendPro shows you. ### What does Lettermint cost for a small startup or webshop compared to Spotler SendPro? The Free plan covers 300 emails per month with no credit card, and you can stay on it for as long as you fit within it. Paid plans start at €10 per month for 10,000 emails and scale with your volume. See [pricing](https://lettermint.co/pricing.md) for every tier. Billing is in euros from an EU company, so there is no currency conversion and the invoice works for European bookkeeping and VAT. ### How can I migrate from Spotler SendPro to Lettermint? Lettermint supports both API and SMTP, just like Spotler SendPro, so a migration takes four steps: 1. Add your domain and verify it with SPF, DKIM and DMARC. 2. Replace your Spotler SendPro API token or SMTP credentials with Lettermint ones. 3. Import your suppression list as a CSV, so known bounces and unsubscribes stay blocked from day one. 4. Send a test email and follow its delivery on the [Time to Inbox page](https://lettermint.co/time-to-inbox-tti.md). Or skip the manual work. The [Team API](https://lettermint.co/docs/api-reference/team/) covers every step, so you can script the migration end to end, or let an AI assistant run it for you through the [MCP server](https://lettermint.co/features/mcp.md). The [documentation](https://lettermint.co/docs/) has the details. ### Why is Lettermint a great Europe-based alternative to Spotler SendPro? Lettermint's entire infrastructure and support are European, which means short delivery paths inside the EU and full compliance with EU regulations like GDPR. ### Does Lettermint run its own infrastructure? Yes. Lettermint owns and operates its infrastructure and IP ranges (AS213427) in the EU instead of building on a hyperscaler. That keeps the subprocessor chain short and the sender reputation under Lettermint's own control. Every part of that setup is documented: the DPA, the subprocessor list and the ISO 27001 certification are public, so you can verify it rather than take Lettermint's word for it. ### How fast can I start sending with Lettermint? Sign up without a credit card, verify your domain with SPF, DKIM and DMARC, create an API token and send your first email, usually within minutes. The [documentation](https://lettermint.co/docs/) walks through each step. You can send over the REST API, SMTP relay or the official SDKs for Laravel, Node.js, PHP, Python, Go and Java, plus integrations such as WordPress, Zapier and Make. Lettermint starts at €10/mo for 10,000 emails. See [pricing](https://lettermint.co/pricing.md) for details. All data is based on publicly available information as of August 2026. For inaccuracies, contact us at https://lettermint.co/contact.