VaultSandbox – Test your real MailGun/SES/etc. integration

Show HN: VaultSandbox – Test your real MailGun/SES/etc. integration

VaultSandbox – Test your real MailGun/SES/etc. integration is active in the show hn launch space.

Profile

I've spent the last few months working on something I wish I'd had years ago. I kept running into the same issue: CI green, production mail broken. TLS handshake failures, DKIM alignment mismatches, SPF soft-fails ... the stuff that only surfaces when real mail servers are involved. Most test tools (Mailpit, MailHog) are catch-alls. They confirm "an email was sent" but don't validate the protocol. They also aren't designed for network-exposed environments: no auth, unprotected Web UI, easy to enumerate messages.VaultSandbox is my attempt at fixing that. It's a self-hosted SMTP gateway (AGPLv3) that validates SPF, DKIM, DMARC, and rDNS on every incoming message. You keep your production email

As a business in show hn launch, VaultSandbox – Test your real MailGun/SES/etc. integration is listed here with the public details available about it.

It is recorded at the Show HN launch stage.

Website: vaultsandbox.com