verify_email
Verify email deliverability
How to use it
verify_email is exposed by the Instantly MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the verify_email tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Instantly MCP
pip install -e .Other tools in Instantly MCP (36)
Start campaign sending
Bulk add up to 1,000 leads
Count unread inbox emails
Create account with IMAP/SMTP credentials
Create email campaign (two-step process)
Create single lead
Create lead list
⚠️ Permanently delete account
⚠️ Permanently delete campaign
⚠️ Permanently delete lead
⚠️ Permanently delete lead list
Get account details and warmup status
Get details of a specific background job
Get campaign details and sequences
Campaign metrics (opens, clicks, replies)
Day-by-day performance
Get email details
Get lead details
Get email verification stats
Account warmup metrics
List email accounts with filtering
List async background jobs with pagination
List campaigns with pagination
List emails with filtering
List lead lists
List leads with filtering
Pause, resume, warmup control, test vitals
Mark email thread as read
Move/copy leads between campaigns/lists
Stop campaign sending
🚨 Send real email reply
Find campaigns a contact is enrolled in
Update account settings
Update campaign settings
Update lead (⚠️ customvariables replaces all)
Update lead list