Temp Mail Blog — Email Privacy Guides & Tips

Guides and tips on disposable email, temporary inboxes, and protecting your real email address from spam and phishing.

How TmpKit Works Behind the Scenes: Architecture, Go-Guerrilla SMTP, and Ephemeral Storage
#engineering#architecture#Go#Redis#SMTP#behind the scenes
How TmpKit Works Behind the Scenes: Architecture, Go-Guerrilla SMTP, and Ephemeral Storage

A deep architectural deep-dive into TmpKit's backend: how the Go-Guerrilla SMTP daemon ingests mail, how the Redis-SQL dual-tier storage enforces ephemeral TTLs, how the tracking-pixel proxy works, and how iframe sandboxing isolates untrusted HTML.

Jesse

7/6/2026

Why Websites Block Disposable Email: Detection Mechanics, DNSBL Architecture, and Risk Mitigation
#disposable email#anti-fraud#cybersecurity#DNSBL#developer guide
Why Websites Block Disposable Email: Detection Mechanics, DNSBL Architecture, and Risk Mitigation

An engineering analysis of how anti-fraud engines identify throwaway inboxes. Explore static blocklists, MX fingerprint clustering, WHOIS heuristic scoring, and developer strategies to minimize false positives.

Jesse

7/6/2026

How Catch-All Domains Work: SMTP Ingestion, Backscatter Risks, and Security Architecture
#SMTP#catch-all#email engineering#Postfix#DNS
How Catch-All Domains Work: SMTP Ingestion, Backscatter Risks, and Security Architecture

An architectural guide to catch-all email domains. Explore the underlying SMTP RCPT TO evaluation, virtual alias maps, the economics of backscatter spam attacks, and BATV defenses.

Jesse

6/27/2026

Temp Mail for Developers & QA: Automated Signup Testing, Playwright Integration, and Pitfalls
#QA testing#developers#Playwright#automation#CI/CD#email headers
Temp Mail for Developers & QA: Automated Signup Testing, Playwright Integration, and Pitfalls

A complete software engineering guide to testing user onboarding and email verification flows. Features battle-tested Playwright code samples, exponential backoff polling, and testing matrix comparisons.

Jesse

6/27/2026

Temporary Email Safety Rules: Threat Modeling, Account Lockout Risks, and Alias Comparisons
#cybersecurity#threat modeling#privacy#email aliases#identity security
Temporary Email Safety Rules: Threat Modeling, Account Lockout Risks, and Alias Comparisons

A comprehensive threat model for disposable email. Understand why permanent accounts require dedicated identity anchors, explore the architectural differences between forwarding aliases and burner inboxes, and master the four safety rules.

Jesse

6/27/2026

SPF, DKIM, and DMARC Explained: The Definitive Guide to Modern Email Authentication
#email security#SPF#DKIM#DMARC#DNS
SPF, DKIM, and DMARC Explained: The Definitive Guide to Modern Email Authentication

A comprehensive, technical breakdown of SPF, DKIM, and DMARC. Learn how email authentication protocols prevent spoofing, understand alignment, avoid the 10-lookup limit, and inspect records via CLI.

Jesse

6/14/2026

How to Read Email Headers: A Forensic Guide to Tracking Senders, Routes, and Spoofing
#email forensics#email headers#email security#phishing analysis
How to Read Email Headers: A Forensic Guide to Tracking Senders, Routes, and Spoofing

Learn forensic email header analysis from scratch. Discover how to trace multi-hop Received paths, verify cryptographic authentication results, detect spoofed Return-Paths, and audit transport latency.

Jesse

6/13/2026