Real-Time Live SMTP Mailbox Validator (250 OK Handshake)
Validate email mailboxes via direct, real-time SMTP handshakes (RCPT TO) against receiving mail servers. Goes beyond basic regex and MX record checks to confirm whether the recipient inbox physically exists and accepts mail. Ideal for developers, API integrations, and CRM hygiene.
Input
Output fields
Sign up on Apify or log in
The Email Verifier & Validator|0.85$/1k - Bulk Email No API Actor is ready to run with the inputs already set for "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)". Sign up or log in and you'll land in Apify Console with a copy of this exact task.
Start the "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)" task
The Email Verifier & Validator|0.85$/1k - Bulk Email No API Actor will start running based on the input automatically. You can also change all the input fields, like email addresses and concurrency, to match your specific use case.
Receive the "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)" 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 email address, status, disposable, 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 "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)" task via API.

Integrate "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)" into your workflow
Connect "Real-Time Live SMTP Mailbox Validator (250 OK Handshake)" 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