SMTP (email) server with a focus on simplicity, security, and ease of operation [mirror]
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Jun 7, 2026 - Go
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email-security
Here are 427 public repositories matching this topic...
Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records.
python security phishing python3 emails cybersecurity penetration-testing spf infosec application-security pentesting appsec dmarc deliverability email-security redteam penetration-testing-tools
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Dec 8, 2025 - Python
Sublime rules for email attack detection, prevention, and threat hunting.
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Jul 14, 2026 - YAML
A free and open platform for detecting and preventing email attacks like BEC, malware, and credential phishing. Gain visibility and control, hunt for advanced threats, collaborate with the community, and write detections-as-code.
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Jul 9, 2026 - Shell
Scan domains and return data based on trustworthy email best practices
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May 13, 2026 - Python
An forensics tool to help aid in the investigation of spoofed emails based off the email headers.
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Jun 25, 2021 - Python
🛡️ A lightweight, self-hosted DMARC report parser with a beautiful Vue.js dashboard. Single-binary deployment with IMAP integration, SQLite storage, and RFC 7489 compliance. Built with Go and Vue 3 - no external dependencies required.
docker golang vuejs dashboard sqlite reporting imap self-hosted spf dkim compliance dmarc dmarc-reports email-security email-authentication vue3 single-binary email-monitoring rfc7489 parsedmarc
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Jul 14, 2026 - Go
Hermes Secure Email Gateway is a Free Open Source Secure Email Gateway and Email Server
open-source privacy docker-compose nextcloud self-hosted smtp dkim anti-spam arc mailserver dmarc email-security email-gateway threat-intelligence anti-phishing email-encryption phishing-protection email-server safe-links secure-email-gateway
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Jul 12, 2026 - JavaScript
Entropy-based link vulnerability analysis tool for campaign and email URLs.
python cli security osint entropy gmail educational email-security link-analysis vulnerability-analysis url-analysis jlospinoso campaign-links
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Feb 8, 2018 - Python
A curated list of awesome resources related to enhancing your Enterprise Email Security
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Mar 10, 2026
Complete System Hardening Suite 2026 🛡️ Advanced Antivirus & Network Security
email-security firewall-rules vulnerability-scanner network-monitor system-hardening malware-scanner sandbox-environment security-software threat-detection exploit-mitigation real-time-protection privacy-guard web-protection vpn-integration heuristic-analysis quarantine-manager antivirus-tools rootkit-remover behavior-analyzer
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Jul 14, 2026 - HTML
The DNS Hunt will make your life easier, and of course faster.
dns security osint enumeration bug-bounty bugbounty security-scanner information-gathering email-security pentesting-tools dns-enumeration bash-recon
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Nov 15, 2020 - Shell
URL / IP / Email defanging with Javascript. Make IoC harmless.
nodejs javascript url ioc email malware phishing javascript-library ip cti phishing-attacks email-security security-tools emailjs defang malware-protection phishing-protection evasion-attack defanging url-defanging
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Nov 10, 2024 - JavaScript
MCP server with 55 security intelligence tools — CVE/KEV, MITRE ATLAS+D3FEND, Sigma detection rules, email security posture (SPF/DMARC), domain & web intel, threat intel.
api security osint mcp cybersecurity cve vulnerability-management email-security threat-intelligence ai-agents claude ai-security sigma-rules mitre-d3fend mitre-atlas llm-tools model-context-protocol domain-recon mcpb claude-desktop-extension
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Jul 14, 2026 - Python
Command-line tool to detect email spoofing vulnerabilities by analyzing SPF and DMARC DNS records. Supports single and bulk domain checks with multiple output formats.
email spf spoofing spoof dmarc email-security subdomain-takeover email-spoofing dns-checker dns-security email-phishing email-spoofing-vulnerability mail-spoof mail-security email-spoof-check
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Apr 11, 2026 - Go
Passive attack-surface scanner: turn a domain into a risk grade, copy-paste fixes, and a client-ready report. Safe DNS, HTTP, TLS, email, and certificate-transparency checks.
python dns tls cli security osint spf certificate-transparency infosec dane dmarc hacktoberfest security-scanner email-security security-tools devsecops attack-surface subdomain-takeover domain-security passive-recon
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Jul 1, 2026 - Python
URL / IP / Email defanging with Golang. Make IoC harmless.
go golang security ioc malware phishing web-security malware-analysis malware-research defense golang-package email-security websecurity defang indicators-of-compromise malware-protection defensive-security phishing-protection golang-module defanging
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Sep 9, 2025 - Go
Protect email addresses, phone numbers and other sensitive data from bots scraping the source code of your Astro app.
security encoding utility obfuscation utils astro spam-protection email-security email-obfuscation email-protection bot-protection astro-component astro-integration withastro
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Nov 1, 2024 - TypeScript
EmailSecCheck is a lightweight Python utility used to check for common SPF/DMARC misconfigurations that may allow for email spoofing.
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May 9, 2025 - Python
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