Validate emails in your n8n workflows

The Mail7 node for n8n

The node takes an email from any previous step and returns a structured validation result. It works the same on n8n Cloud and self-hosted instances, and needs only an optional API key for higher volume.

Three-way output for clean branching logic

Rather than a single true or false that hides uncertainty, the node outputs three states you can wire straight into an IF or Switch node:

Route Not Valid out, keep Unknown in

A good default is to send only Not Valid results down a cleanup branch and let Valid and Unknown proceed. Unknown covers catch-all domains, greylisting and servers that block SMTP probing, none of which mean the address is fake.

Typical self-hosted use cases

Clean incoming leads before they reach a database, validate addresses pulled from a webhook, or run a scheduled workflow that re-checks a list and quarantines the confirmed-invalid ones. The node fits wherever your workflow already handles email.

Install the node in your n8n instance

1. 1

   Add the community node

   Publication is pending, so install the node package into your n8n instance directly.

2. 2

   Add it to a workflow

   Drop the Mail7 node after the step that produces the email.

3. 3

   Branch on the output

   Use IF or Switch on the Valid / Not Valid / Unknown result.

Free single checks, paid plans for volume

Single checks are free and need no account. Paid plans raise your API volume for busy automations, and you are only charged for definite Valid and Not Valid results. Unknown checks are always free.

Related integrations

Frequently asked questions