Email Validation and Domain Extraction
This workflow is primarily used for validating the effectiveness of email addresses and extracting domain names. It can automatically determine whether the email format is correct and extract domain information from it. Through this process, users can quickly filter valid email addresses, eliminate invalid data, and categorize domains, significantly enhancing data quality and subsequent processing efficiency. It is suitable for scenarios such as marketing automation, data cleansing, and customer relationship management, helping users ensure email delivery quality and optimize data management.

Workflow Name
Email Validation and Domain Extraction
Key Features and Highlights
This workflow leverages n8n’s native capabilities to validate the authenticity of email addresses and extract domain information. Using built-in expression methods, it automatically verifies the correctness of the email format and extracts the domain from the email address, facilitating subsequent data classification and analysis.
Core Problems Addressed
It addresses the challenge of quickly filtering valid email addresses, eliminating invalid data, and automatically obtaining email domains for grouping and management during data processing and marketing campaigns. This significantly enhances data quality and improves the efficiency of downstream processes.
Use Cases
- Marketing Automation: Validate user-submitted emails to avoid sending spam.
- Data Cleansing: Perform email validity checks and domain categorization on imported user data.
- Customer Relationship Management (CRM): Automatically tag valid customer emails and their associated domains to assist in customer segmentation.
- Any business process requiring email format validation and domain extraction.
Main Workflow Steps
- Manually trigger the workflow execution (via the “When clicking 'Test workflow'” node).
- Generate sample random email data for testing purposes (using the “Generate random data” node).
- Use expressions to determine the validity of each email address (calling the
.isEmail()
method in the “Set these fields to extract domain” node). - Extract domain information from valid email addresses (using the
.extractDomain()
method). - Output the results, including the email address itself, its validity status, and the extracted domain.
Systems or Services Involved
- n8n built-in nodes and expression functionalities
- No external system dependencies, enabling easy integration into various automation workflows
Target Audience and Value
- Data Analysts and Data Engineers: Quickly validate and cleanse email data.
- Marketing Professionals and CRM Administrators: Ensure email delivery quality and enhance marketing effectiveness.
- Automation Engineers and Developers: Embed as an email processing module within more complex automation workflows.
- Any business function requiring email format validation and domain extraction to improve efficiency and reduce human error.