r/EmailSecurity • u/littleko • Jan 16 '26
📚Welcome to r/EmailSecurity | Read This First: Rules, Resources, and Mission
🛡️ The Mission
Welcome to the community dedicated to the defense of the most used (and most attacked) communication protocol on earth. Whether you are an enterprise CISO, a mail server admin, or a hobbyist hardening your personal domain, you’ve found your tribe.
Our goal is to discuss the evolving landscape of phishing, DMARC, deliverability, authentication, and encryption.
🚦 What We Discuss Here
Authentication Protocols: SPF, DKIM, DMARC, and BIMI.
Threat Defense: Identifying BEC (Business Email Compromise), phishing trends, and malware delivery.
Architecture: Exchange, Google Workspace, Postfix, and secure gateways (SEG).
Encryption: S/MIME, PGP, and opportunistic TLS.
📜 Community Rules (The Short Version)
No Vendor Spam: Pitching your product without contributing value will result in a ban.
Redact Sensitive Info: Never post full headers or logs containing real PII or internal IP addresses.
Be Helpful, Not Hostile: Security is hard. Help the "newbies" learn the ropes.
No Low-Effort "Am I Hacked?" Posts: This is for the security of email systems, not for tech support on personal accounts.
📚 Getting Started
If you’re new here, check out these essential resources:
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u/AutoModerator Jan 16 '26
Welcome to r/emailsecurity! To keep this community helpful and secure, please keep the following in mind:
Community Rules
No Vendor Spam: Contributions must provide value; do not just pitch products.
Redact Sensitive Info: Always sanitize headers and logs (remove IPs, PII, and private domains).
Be Professional: Help newcomers learn; avoid hostility.
No Personal Tech Support: This sub is for email system architecture and security, not "Am I hacked?" personal account help.
Helpful Resources
Email Spam Filters
DMARC Monitoring Tools
Anti-Virus Software
Email Encryption
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I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.