Check if an email address is unsubscribed
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Look something up
Check if an email address is unsubscribed
with lemlist
Works with AI assistants
Use lemlist: its Lemlist Unsubscribes API lets you check if an email address is unsubscribed in a single step (GET /unsubscribes/{email}). lemlist also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- Has a specific email address unsubscribed from my emails?
- Can I check one address's unsubscribe status before adding them?
Say it to your AI assistant
- Check whether {email} has unsubscribed.
- Look up the unsubscribe entry for {email}.
For your developer
GET /unsubscribes/{email} in Lemlist Unsubscribes API. Full spec on APIs.io.