Plug into your stack

Sendlyio works with the inboxes and tools you already use. No replatforming, no IT tickets.

Live now

Gmail

Gmail and Google Workspace sending and reply sync.

Custom SMTP / IMAP

Any provider — Zoho, Fastmail, or your own mail server.

Slack

Real-time alerts for replies, inbox health, and billing in your channel.

HubSpot

Auto-create contacts, log replies, and open deals when prospects respond.

Calendly

Bookings mark the lead hot and alert you — reply-to-meeting attribution, automatically.

MCP servers

Connect any Model Context Protocol server to give Sendlyio's AI your own tools, data, and live context.