Validate Single Email
AI-generatedSummary
Validate a single email address by performing an SMTP handshake with the recipient's mail server, optionally routing through a proxy and trying multiple SMTP ports in fallback order.
Inputs
- Proxy Type — Type of proxy to use for the SMTP connection (none, SOCKS5, HTTP, or HTTPS).
- Proxy Host — Hostname of the proxy server (required if a proxy type other than none is selected).
- Proxy Port — Port number of the proxy server (required if a proxy type other than none is selected).
- Proxy Username — Username for proxy authentication, if needed.
- Proxy Password — Password for proxy authentication, if needed.
- SMTP Ports (Fallback Order) — Comma-separated list of SMTP ports to try in order for the handshake (default: 25,587,465,2525).
- Include Port Attempt Trace — Whether to include detailed results for each attempted SMTP port in the output.
- Email (required) — The single email address to validate via SMTP handshake.
Output shape
a single JSON object with validation result for the email address
The output includes the email being validated, its validation status (e.g., valid, invalid, unknown, starttls_required), the mail exchanger (MX) server used, ports tried, and optionally a trace of each port attempt if enabled. Possible results include 'valid', 'invalid', 'no_mx_record', 'invalid_format', 'starttls_required', 'starttls_failed', 'unknown', or proxy-related error messages.
Examples
Example 1: Validate a single email via SMTP handshake over a SOCKS5 proxy
Set Proxy Type to SOCKS5 with appropriate proxy host, port, and optional authentication. Enter the email to validate. Optionally adjust SMTP ports and enable port attempt trace to get details per port.
Example 2: Validate a single email directly without a proxy
Set Proxy Type to None, provide the email address, and optionally configure SMTP ports and port attempt trace.