Integrations

Connect InboxBox to your stack

InboxBox integrates with leading mail providers, CRMs, and automation platforms so your outreach fits naturally into existing workflows.

Integration docs Connect a mailbox
Fast setup
OAuth-based connections and step-by-step guides — get connected in minutes.

Supported integrations

Built-in integrations for mail providers, CRMs, and automation tools. Each integration supports secure OAuth or API-based authentication.

Mail providers

Gmail & Google Workspace
Send and receive via connected Gmail accounts using OAuth; automatic label sync and thread handling.
Microsoft Outlook & Exchange
Connect Office 365 and Exchange accounts to send, receive and track replies securely.
SMTP / IMAP
Legacy SMTP/IMAP support for custom mail servers with manual configuration options.

CRMs & Sales tools

HubSpot
Two-way contact sync, activity logging and campaign attribution for HubSpot users.
Salesforce
Push replies, activities and campaign performance into Salesforce records for reporting.
Pipedrive
Sync deals, activities and contact fields to keep CRM and outreach aligned.

Automation & connectors

Zapier
Connect InboxBox to thousands of apps for custom triggers and automations.
Slack
Get notifications for replies, high-priority conversations and deliverability alerts directly in Slack channels.
REST API
Programmatic access to contacts, campaigns, and conversation data with REST endpoints.
See full docs Request a custom integration

Integration best practices

Secure connections

Always use OAuth where available. Tokens are refreshed securely and no mailbox passwords are stored in plain text.

Sync cadence

Choose the right sync interval for your use case — real-time for replies and hourly for analytics to reduce API usage and keep costs predictable.

Developer & Enterprise

API access

Full API with endpoints for campaigns, contacts, and conversations. API keys can be scoped and rotated per application.

View API docs

Enterprise integrations

Custom connector development, SSO/SAML, and dedicated support for large deployments — we’ll work with your engineering team.

Contact Enterprise

Want an integration added?

If you need a custom connector or help with setup, our engineering team can assist — request a custom integration or consult our docs.

Request custom integration