>_ Nexoxa Bridge — SMTP & mail
SMTP connection and TLS verification
AUTH + TLS check before you send
Connect mail servers with smtp:// or smtps://. NexoxaBridge verifies AUTH, STARTTLS, and certificate chain on connect — surface misconfigured port 587 vs 465 before production sends fail silently.
Free for up to 5 connections · Windows desktop
Your data stays yours
Local-first by default. Read how Bridge handles secrets.
100% local vault
Connection URLs, SSH keys, and SMTP secrets stay encrypted on your Windows machine — not in a Nexoxa cloud vault.
Zero vault telemetry
We don’t ship your credentials or query results to our servers. Account and billing stay separate from your connection vault.
Direct connection
Bridge talks straight to your databases, SSH hosts, and storage endpoints. No proxy that holds your passwords.
Built into the studio
1
TLS verify
STARTTLS and SMTPS handshake test.
2
AUTH probe
PLAIN, LOGIN, CRAM-MD5 detection.
3
Port helpers
587 vs 465 query param docs.
4
Instant feedback
Red/green connect status in Mail studio.
Work faster in one place
Stop switching between CLI, clients, and dashboards.
Port 587 STARTTLS (?secure=tls)
Port 465 SMTPS (?secure=ssl)
AUTH capability probe
Certificate and chain validation
Related features
Explore more of the same workbench.
Frequently asked questions
Ready to try SMTP connect & verify?
Free on the Microsoft Store for up to 5 connections. Credentials stay encrypted on your machine.