--- title: "smtply Software Pricing, Alternatives & More 2026 | Capterra" description: "With the help of Capterra, learn about smtply Software - reviews, pricing plans, popular comparisons to other Transactional Email products and more." source_url: "https://www.capterra.com/p/10181890/smtply/" page_type: "product" language: "en" --- # smtply Software Review 2026: Features, Reviews, Integrations, Pros & Cons Last updated on September 29, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Description](#description)[Use cases](#use-cases)[FAQs](#faqs)[Features](#features)[Pricing](#pricing)[Support](#support) smtply ## What is smtply? SMTPly is email relay software enabling legacy devices to send messages via Microsoft 365 using OAuth2 authentication. Running as a local Windows service, it converts SMTP connections into Microsoft Graph API calls, ensuring data remains local without third-party servers. Its architecture includes an SMTP listener, relay queue with retry logic, and a Graph sender managing OAuth2 tokens for secure delivery. Security features include DPAPI encryption, certificate store integration, and health monitoring for certificate expiration alerts. A live mail tracker provides visibility into relayed messages, while usage reports summarize activity and errors. The software supports STARTTLS, implicit TLS, IP whitelisting, and sender domain filtering. Advanced editions offer multi-tenant routing, rate limiting, Prometheus metrics, and encrypted backups. Enterprise features include REST APIs, sandbox modes, outbound routing rules, and SIEM forwarding. Compliance tools ensure proof chains. ## What is smtply used for? [Transactional Email](https://www.capterra.com/transactional-email-software/) Overall rating Based on 0 user reviews Reviews sentiment Positive \- Neutral \- Negative \- Starting price €149 Flat Rate, One Time Free trial available Free version not included Capterra Shortlist charts the highest-rated and most popular products... Our "Best of" badge program showcases products with the highest ratings... Our "Best of" badge program showcases products with the highest ratings... Do you work for smtply?[Manage this product listing](https://www.g2.com/products/smtply/claim_requests/new?auto=true) ## FAQs about smtply Overview ### What company size and specific industries is smtply built for? smtply is designed for IT administrators and managed service providers running Microsoft 365, especially in organizations that still depend on legacy devices and applications such as printers, scanners, ERP, CRM, monitoring, and backup systems. It fits businesses that need older systems to keep sending email. Features and Usability ### What are the key features of smtply? smtply includes Simple Mail Transfer Protocol (SMTP), API access, webhooks, and event-triggered actions for email workflows. It also offers autoresponders, alerts/notifications, email distribution, multiple domains, detailed server logs, and reporting/analytics, with third-party integrations and real-time data for tracking message activity. Pricing ### How much does it cost and what fees or limitations are included? smtply starts at €149 one time for the Starter Edition, which covers 1 Microsoft 365 Tenant and includes simple support. The Business Edition costs €249 for up to 5 tenants with preferred support, and the Enterprise Edition is €549 for up to 25 tenants with direct contact. A free trial is available. Getting Started and Support ### What training and onboarding options does smtply offer? smtply provides documentation to help teams get started. Documentation gives users written reference material for reviewing setup steps, learning available features, and checking details as needed during early use and ongoing work. Getting Started and Support ### What customer support options does smtply offer? smtply provides Email/Help Desk, FAQ/Forum, Knowledge Base, and Phone Support. No reviewer feedback on support is available, so no claims can be made about response speed, helpfulness, or common frustrations. Users should rely on the listed channels for product help and account questions. ## Features AI summary Based on 889 Transactional Email reviews Capterra data shows that buyers of transactional email software rank the following features as their top priorities: - **Email Management** (**56%** of reviewers rated this feature as critical) - **Email Distribution** (**67%**) - **API** (**63%**) smtply includes **Email Distribution** and **API**, giving teams the tools to send transactional messages reliably and connect email functions with their existing applications. However, it does not include **Email Management**. Instead, it offers **Simple Mail Transfer Protocol (SMTP)** (**60%**), which gives businesses another way to handle message delivery and connect systems for outbound email, helping teams send important communications efficiently and maintain consistent delivery workflows. Alerts/Notifications Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges API Application programming interface that allows for integration with other systems/databases Autoresponders Create and automatically send premade copy in response to customer messages Detailed Server Logs Detailed logs for tracking and debugging mail server activity. Documentation Witness statements, confessions, time cards, video footage, and other investigation materials are stored in secure designated data warehouses for safe keeping throughout the investigaiton process. Event Triggered Actions Predefined actions automatically performed on the occurance of specific events smtply 13 features ### All Features - Alerts/Notifications: Alerts or notifications of various types such as pop-up messages, sounds, banners, or badges - API: Application programming interface that allows for integration with other systems/databases - Autoresponders: Create and automatically send premade copy in response to customer messages - Detailed Server Logs: Detailed logs for tracking and debugging mail server activity. - Documentation: Witness statements, confessions, time cards, video footage, and other investigation materials are stored in secure designated data warehouses for safe keeping throughout the investigaiton process. - Event Triggered Actions: Predefined actions automatically performed on the occurance of specific events - Multiple Domains: Able to send emails from multiple domains. - Performance and Reliability: Payment gateway is consistently available (up-time) and allows users to complete tasks quickly because they are not waiting for the gateway to respond to an action they took. System scales with load. - Real-Time Data: Receive data and information in real time - Reporting/Analytics: View and track pertinent metrics to find patterns and gain insights from data - Simple Mail Transfer Protocol (SMTP): Internet standard communication protocol to transmit electronic mails - Third-Party Integrations: Set up connections to third-party platforms to improve business processes - Webhooks: Event-driven HTTP callback that automatically sends real-time data between applications --- ## Pricing Free Trial [View pricing plan details](https://www.capterra.com/p/10181890/smtply/pricing/) Starter Edition €149.00 Flat Rate,One Time It includes: - Full SMTP listener + OAuth2 relay - STARTTLS and implicit TLS - IP and sender whitelist - Mail tracker with privacy masking - Setup assistant, self-test, diagnostic package Business Edition €249.00 Flat Rate,One Time It includes: - Includes all Starter Edition features - Multi-tenant routing (domain & AUTH user) - SMTP authentication with per-device user accounts, CSV import - Webhooks, monitoring endpoint, journal BCC - Multiple listener ports, rate limit per source IP - Scheduled backups, automatic client secret renewal Enterprise Edition €549.00 Flat Rate,One Time It includes: - Includes all Business Edition features - REST API (read-only, JSON) for central management - MCP server for AI assistants with pre-masked addresses - Sandbox/migration mode for testing - Outbound rules per mail (tenant, sender, journal) - Syslog/SIEM forwarding - Retention beyond 14 days with proof chain ## Support, customer service and training options Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Deployment - Web - Android - iPhone/iPad Typical users - Freelancers - Small businesses - Mid size businesses - Enterprises ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox.