Startup Email
A streamlined, self-signup email hosting platform for small startups and developer studios, engineered for zero-friction domain onboarding, automated DNS record verification, and high deliverability.
// 01. Challenge & Deliverability Problem
Traditional email services charge steep per-user monthly costs that penalize early-stage startups and internal automation accounts. Setting up self-hosted mail servers often fails due to complex SPF, DKIM, DMARC, and PTR reverse DNS misconfigurations that cause emails to land in spam. Startup Email provides an automated pipeline that validates domain ownership and sets up cryptographically signed DKIM keys automatically.
// 02. Infrastructure Pipeline
Deployments are provisioned with Terraform across hardened Linux nodes with dedicated warm IPs. Inbound and outbound mail is inspected by Rspamd and filtered for malware, spoofed envelopes, and phishing vectors before routing to Dovecot encrypted mailbox storage.
Inbound MX Request → Postfix MTA (TLS 1.3 enforced)
→ Rspamd Milter (DKIM / SPF / DMARC verification)
→ ClamAV virus scanner
→ Dovecot LDA → Maildir Encrypted Storage
Outbound SMTP → Postfix Submission (Port 587 SASL Auth)
→ Automatic DKIM 2048-bit Signature
→ Clean Dedicated IP Pool → Remote MX // 03. Key Features
- Zero-config DNS onboarding: 1-click Cloudflare and Route 53 record synchronization.
- Custom aliases, catch-all routing, and webhook forwarders for automated notifications.
- Standard IMAP/SMTP compatibility for Apple Mail, Thunderbird, Outlook, and mobile apps.
- Automatic TLS certificate renewal via Let's Encrypt ACME challenges.