Q: Is there a block for validating an email address?
Hello,
When someone provides an email address to the agent, is there a block that allows the agent to validate the email address by sending a test email and then requiring the user to click on a link?
Thanks a lot, kind regards,
Thomas

release0
Aug 15, 2025A: Hi Thomas,
Currently, Release0 doesn’t have a dedicated email verification block that sends a test email with a confirmation link for the user to click. However, you can implement this type of flow using our Email block together with an external email verification or double opt-in service.
How it could work:
1. Capture the user’s email in your chatbot flow.
2. Send them a verification email containing a unique link using the Email block (SMTP, Resend, etc.).
3. That link can point to a small page or webhook endpoint that you manage, which marks the email as “verified” in your database.
4. When the user returns to the chatbot (or the bot checks your database), you can conditionally allow them to continue based on their verification status.
If you don’t need the user to click a link, you can also use real-time syntax and MX record checks via an external API (like ZeroBounce, NeverBounce, etc.) from the HTTP Request block. This lets you validate that the address is formatted correctly and belongs to a real domain before sending any email.
Here are some references you might find helpful:
• Email block setup: https://docs.release0.com/editor/blocks/integrations/send-email
• HTTP Request block: https://docs.release0.com/editor/blocks/integrations/http-request