sendqube
All features
Sequences & sending

Microsoft 365, Gmail, and SMTP

Connect Microsoft 365 or Gmail via OAuth, or bring your own SMTP mailbox on a custom domain — no separate sending infrastructure to manage.

How it works

Microsoft 365 and Gmail connect via OAuth — you authorize Sendqube once and it holds a refresh token to send on your behalf, no password stored. SMTP mailboxes connect with host/port/username/password credentials for any custom-domain inbox.

The process in Sendqube

  1. 1Go to Mailboxes and click Connect.
  2. 2Choose Microsoft 365, Gmail (Beta), or SMTP.
  3. 3For OAuth providers, sign in and grant access; for SMTP, enter your server details and test the connection.
  4. 4Set a daily send limit, working hours, and signature, then assign the mailbox to a sequence.
This is live in the product today — not a roadmap item.
Try Mailboxes

More in Sequences & sending

Multi-step sequences
Mailbox rotation
Reusable templates

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