Find domains vulnerable to email spoofing
Keep only domains with no enforced DMARC policy, where anyone can send email as them, as a lead list for MSPs and email security vendors.
Input
Output fields
Sign up on Apify or log in
The Email Security Grader - SPF, DMARC, DKIM, MTA-STS (Bulk) Actor is ready to run with the inputs already set for "Find domains vulnerable to email spoofing". Sign up or log in and you'll land in Apify Console with a copy of this exact task.
Start the "Find domains vulnerable to email spoofing" task
The Email Security Grader - SPF, DMARC, DKIM, MTA-STS (Bulk) Actor will start running based on the input automatically. You can also change all the input fields, like domains and only spoofable domains, to match your specific use case.
Receive the "Find domains vulnerable to email spoofing" output
Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as domain, grade, score, and more.
Integrate into your workflow
The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Find domains vulnerable to email spoofing" task via API.

Integrate "Find domains vulnerable to email spoofing" into your workflow
Connect "Find domains vulnerable to email spoofing" with 100+ integrations, or run it via API or MCP.
Webhook
n8n
Make
Zapier
Airbyte
Keboola
IFTTT
Hubspot
GDrive
Gmail
Apify MCP
GitHub
Slack
LangChain
LlamaIndex
Flowise
Pinecone
OpenAI
Mastra
Clay
The Email Security Grader checks SPF, DMARC, DKIM, MTA-STS and BIMI for each domain and gives an A to F grade with the specific issues found.
The Email Security Grader marks a domain spoofable when it has no enforced DMARC policy, so anyone can send email that appears to come from it.
The Email Security Grader is used by MSPs, security vendors and IT teams to find domains that need DMARC and email authentication fixes.