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Hosted remote server for a Microsoft 365, Gmail or IMAP mailbox you already own: read, search, draft, reply in thread, forward and file mail. It moves or flags up to 500 messages in one call, and a send leaves exactly one copy in Sent. A calendar is a separate connection, and connecting one adds diary and scheduling tools.
Verify email addresses in real time and find business email addresses with live mailbox checks.
Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps.
Manage Subscribers, Broadcasts, Sequences, Automations, and reporting in Mailrith.
Register, renew, transfer, and manage domains, DNS, VPS, and email with 102 tools. By OSIR.
Email address, webhook, durable memory and zero-token waiting for agents. Paid in USDC via x402.
Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them
MCP server for Tomba email finder, verification, and contact enrichment API
Apollo connects your sales data and outreach tools directly to your agent . Ask it to find leads, look up a company, write and send emails, or check how a campaign is performing. All from a conversation, without opening another tab.
Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.
Emailable MCP — wraps the Emailable email verification API (emailable.com)
could-have-been-email MCP — wraps StupidAPIs (requires X-API-Key)
Findymail MCP — B2B email finder & reverse-email lookup (findymail.com)
Hunter.io MCP — wraps the Hunter.io email finder & verification API (hunter.io)
send-that-email MCP — wraps StupidAPIs (requires X-API-Key)
Klaviyo MCP Pack — wraps the Klaviyo API for email marketing
Mailchimp MCP Pack — manage audiences, campaigns, and members via Mailchimp Marketing API.
ActiveCampaign MCP Pack — email marketing + CRM (API v3).