Connect your stack to ColdSend

Google Workspace

Connect Google Workspace mailboxes to ColdSend. Send cold emails through your own OAuth app or ColdSend's shared infrastructure with native reply tracking.

Microsoft 365

Connect Microsoft 365 and Outlook mailboxes to ColdSend. Send cold emails through your own Microsoft Entra OAuth app or ColdSend's shared infrastructure with native reply tracking.

Azure

Connect your own Microsoft Azure account to ColdSend. Create pre-warmed inboxes on Azure Communication Services with full infrastructure ownership.

Claude Code

Control ColdSend from Claude Code through our hosted MCP server. Create campaigns, upload leads, manage sender accounts, and reply to prospects with natural language.

SMTP / IMAP

Connect any SMTP or IMAP inbox to ColdSend. Use ColdSend's sequencer and reply tracking with mailboxes from any provider or host.

HubSpot

Sync ColdSend replies, bounces, and engagement events into HubSpot contacts, deals, and activities using ColdSend webhooks and a simple bridge.

Salesforce

Sync ColdSend replies, bounces, and engagement events into Salesforce leads, contacts, opportunities, and tasks using ColdSend webhooks and a simple bridge.

Pipedrive

Sync ColdSend replies, bounces, and engagement events into Pipedrive persons, deals, and activities using ColdSend webhooks and a simple bridge.

Zapier

Connect ColdSend to Zapier through webhooks. Trigger automations from campaign events, and send data back to ColdSend via the API.

Instantly

Migrate from Instantly to ColdSend without losing momentum. Import your inboxes, lists, and sequences and send from Azure-managed infrastructure.

Smartlead

Migrate from Smartlead to ColdSend and replace sequencer + mailbox sourcing with one platform. Send from Azure-managed, pre-warmed infrastructure.