io.github.richelo/isitdisposable-mcp

Checks up to 100 email addresses or domains at once in a single call, which is far more efficient than calling the single-item tools in a loop. Provide a mixed list in `items`: entries containing an @ sign are sent as email addresses, and all other entries are sent as bare domains. A disposable address is a throwaway or temporary inbox (for example from a burner mail service) that someone uses to receive a single signup message and evade normal registration requirements, rather than a real, ongoing mailbox. In the response, `disposable` is the core true or false verdict. `action` is the recommended handling: `allow`, `warn`, or `block`, based on the caller's own account policy. Extra opt in signals may also be present: `mx_valid` (whether the domain's mail servers accept mail at all), `relay` (a forwarding or catch all style address rather than a dedicated inbox), `public_domain` (a well known free provider such as Gmail or Outlook), and `did_you_mean` (a likely intended domain when the one given looks like a typo). This tool always fails open: if a network problem, timeout, rate limit, or server error prevents a real check, the call still succeeds and returns `checked` false with `action` allow, plus a `note` explaining the check could not be completed. Treat that outcome as inconclusive, never as evidence the address is safe.

Checks a single bare domain (no local part, for example when only a company's domain is known and not a specific address) to see whether it is disposable. A disposable address is a throwaway or temporary inbox (for example from a burner mail service) that someone uses to receive a single signup message and evade normal registration requirements, rather than a real, ongoing mailbox. In the response, `disposable` is the core true or false verdict. `action` is the recommended handling: `allow`, `warn`, or `block`, based on the caller's own account policy. Extra opt in signals may also be present: `mx_valid` (whether the domain's mail servers accept mail at all), `relay` (a forwarding or catch all style address rather than a dedicated inbox), `public_domain` (a well known free provider such as Gmail or Outlook), and `did_you_mean` (a likely intended domain when the one given looks like a typo). This tool always fails open: if a network problem, timeout, rate limit, or server error prevents a real check, the call still succeeds and returns `checked` false with `action` allow, plus a `note` explaining the check could not be completed. Treat that outcome as inconclusive, never as evidence the address is safe.

Checks a single email address to see whether it is disposable. A disposable address is a throwaway or temporary inbox (for example from a burner mail service) that someone uses to receive a single signup message and evade normal registration requirements, rather than a real, ongoing mailbox. In the response, `disposable` is the core true or false verdict. `action` is the recommended handling: `allow`, `warn`, or `block`, based on the caller's own account policy. Extra opt in signals may also be present: `mx_valid` (whether the domain's mail servers accept mail at all), `relay` (a forwarding or catch all style address rather than a dedicated inbox), `public_domain` (a well known free provider such as Gmail or Outlook), and `did_you_mean` (a likely intended domain when the one given looks like a typo). This tool always fails open: if a network problem, timeout, rate limit, or server error prevents a real check, the call still succeeds and returns `checked` false with `action` allow, plus a `note` explaining the check could not be completed. Treat that outcome as inconclusive, never as evidence the address is safe.