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Postal
A complete and fully featured mail server for use by websites & web servers.
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Open source
Self-hostable
MIT
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One Time Secret
Share sensitive information securely with self-destructing links that are only viewable once.
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AnonAddy
Email forwarding service for creating aliases.
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AnyCable
Realtime server for reliable two-way communication over WebSockets, Server-sent events, etc.
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Apprise
Apprise allows you to send a notification to almost all of the most popular notification services available to us today such as: Telegram, Discord, Slack, Amazon SNS, Gotify, etc.
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Artalk
Comment system built in Golang, providing a lightweight and highly customizable solution for adding comments to your website.
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Centrifugo
Language-agnostic real-time messaging (Websocket or SockJS) server.
MIT
Go
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