SwitchBoard121 is designed the way a security team would build it — minimal access, encrypted storage, and full transparency about what we do and don't touch.
Microsoft 365 and Outlook connect through delegated OAuth — SwitchBoard121 is granted only the permission to send mail as you, nothing more.
For mailboxes connected over SMTP, credentials are sealed with encryption before storage — never kept as plaintext.
We store your partner list and send history — never your broader mailbox contents. Delete your account and your data is removed.
Hosted on Vercel with a managed Postgres database, TLS encryption in transit, and no self-managed servers.
Access is subscription-gated, and organizations can require admin approval before anyone connects a mailbox.
Our Trust Center covers the technical detail security teams ask for.
Visit the Trust CenterAuthentication scopes, data handling, credential storage, and infrastructure — documented for IT and security teams.
Questions about our security practices? Email support@switchboard121.com