--- title: rustmailer/rustmailer: A self-hosted IMAP/SMTP... description: RustMailer is a self-hosted email middleware written in Rust that provides IMAP/SMTP functionality for developers. It offers multi-account email... canonical: https://daily.dev/posts/frygmyiff twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: rustmailer/rustmailer: A self-hosted IMAP/SMTP middleware designed for developers | daily.dev og:description: RustMailer is a self-hosted email middleware written in Rust that provides IMAP/SMTP functionality for developers. It offers multi-account email... og:url: https://daily.dev/posts/frygmyiff og:image: https://api.daily.dev/og/posts/FrYGMYIFF.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # rustmailer/rustmailer: A self-hosted IMAP/SMTP middleware designed for developers **[Daily Open Source Tools](https://daily.dev/sources/dailyopensourcetools)** · [@serdarbuyukdereli](https://daily.dev/serdarbuyukdereli) · 24 upvotes · 0 comments ## Summary RustMailer is a self-hosted email middleware written in Rust that provides IMAP/SMTP functionality for developers. It offers multi-account email synchronization, template support, webhook integration, OAuth2 authentication, and a web-based admin interface. The tool is designed to help developers integrate email functionality into applications without building complex mail infrastructure from scratch. It includes features like email tracking, NATS integration, and VRL scripting for payload transformation. While the source code is publicly available, production use requires a commercial license after a 14-day free trial. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#rust](https://daily.dev/tags/rust) [View this post on daily.dev](https://daily.dev/posts/frygmyiff) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/frygmyiff","headline":"rustmailer/rustmailer: A self-hosted IMAP/SMTP middleware designed for developers","text":"Shared: rustmailer/rustmailer: A self-hosted IMAP/SMTP middleware designed for developers","url":"https://daily.dev/posts/frygmyiff","datePublished":"2025-08-26T15:02:05.134Z","dateModified":"2025-08-26T15:02:44.418Z","author":{"@type":"Person","name":"Serdarcan Buyukdereli","url":"https://daily.dev/serdarbuyukdereli","image":"https://media.daily.dev/image/upload/s--tTV8hAPq--/f_auto/v1778701721/avatars/avatar_Su5HqluAE4wLRb1naHjtv?_a=BAMAMiWQ0","description":"Senior Devops and Cloud Engineer\n","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":21390}},"image":"https://media.daily.dev/image/upload/s--ZrL_HSsR--/f_auto/v1722860399/public/Placeholder%2006","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":24},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/35SlLUzx9"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/dailyopensourcetools","name":"Daily Open Source Tools"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Daily Open Source Tools","item":"https://daily.dev/squads/dailyopensourcetools"},{"@type":"ListItem","position":3,"name":"rustmailer/rustmailer: A self-hosted IMAP/SMTP middleware designed for developers"}]} ```