🐳 A bring-your-own-SMTP-server mail relay with REST API and web UI
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Dec 23, 2023 - Go
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mail-relay
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MailSecOps is an email and mail gateway security testing tool. With this script, you can perform mail spoofing, relay tests and security checks for a specific domain. The tool also helps to verify SPF, DMARC, SSL/TLS and other security tests.
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Nov 20, 2024 - Python
SMTP Mux is a programmable SMTP proxy that multiplexes outbound email at runtime via plugins, allowing fine-grained control over delivery based on sender, recipient, domain, volume, health checks, or custom policies.
go golang router email-sender emails smtp smtp-server high-availability mux devops-tools smtp-client smtp-mail mail-relay
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Jan 6, 2026 - Go
A full-featured Laravel integration for Hyvor Relay, including a custom mail transport, typed Console API client, webhook handling with signature verification, event dispatching, and testing fakes for Hyvor-hosted or self-hosted Relay endpoints.
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Mar 9, 2026 - PHP
Find open services
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Jan 29, 2026 - Lua
Lightweight SMTP proxy relay that forwards emails through an upstream server with header sanitization for privacy. Strips source-identifying headers, replaces envelope sender, and generates new Message-IDs. Docker-ready, single static binary.
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Feb 24, 2026 - Go
Postfix Relay setting X-Envenlope-To
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Aug 5, 2019 - Dockerfile
📧 Enhance email reliability with SmtpMux, a pluggable SMTP proxy that ensures seamless communication between your apps and mail providers.
go router email-sender emails smtp smtp-server high-availability mux devops-tools smtp-client smtp-mail mail-relay
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Mar 26, 2026 - Go
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