MCP-Server
scan.mx Email Diagnostics
mx.scan/diagnostics
Was dieses MCP kann
Checks domain email deliverability through MX, SPF, DKIM, DMARC, DNS health, SMTP probing, and blacklist status.
Funktionen
Tools
6
Tools
check_blacklist
Check blacklists
Check whether the domain and its mail server IPs are listed on the Spamhaus (ZEN, DBL, ZRD, AuthBL), SpamCop, GBUdb and PSBL blocklists.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
check_dkim
Check DKIM
Check DKIM signing keys for a domain. Without a selector, common provider selectors are probed. Pass an explicit selector to look up that exact key at selector._domainkey.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}, 'selector': {'type': 'string', 'pattern': '^[a-z0-9_.-]+$', 'maxLength': 63, 'description': 'An explicit DKIM selector to look up (e.g. "google", "s1").'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
check_dmarc
Check DMARC
Check the domain DMARC policy at _dmarc: presence, policy strength (none/quarantine/reject), and reporting.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
check_domain
Full email deliverability check
Run the full email and DNS deliverability check for a domain: MX, SPF, DKIM, DMARC, DNS health, provider detection, and blacklists. Returns a letter grade (A+ to F, where specific weaknesses cap the grade), a 0 to 100 score, and every individual check with its RFC reference. Set include_smtp to also run a live SMTP probe of the mail servers: the probe is non-blocking, so when smtp_status is "pending" or "running" call this tool again (poll_after_seconds hints how long to wait) until smtp_status is "complete" and the SMTP checks appear in checks.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}, 'include_smtp': {'type': 'boolean', 'default': False, 'description': 'Also run a live SMTP connectivity probe of the MX hosts. Non-blocking: poll by re-calling until smtp_status is complete.'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
check_mx
Check MX records
Check the MX records of a domain: presence, hostnames, resolution, null-MX, and common misconfigurations.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
check_spf
Check SPF
Check the domain SPF policy: presence, syntax, the all qualifier, and the 10-lookup limit.
Nur Lesen
Externer Zugriff
Eingabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'domain': {'type': 'string', 'maxLength': 253, 'minLength': 1, 'description': 'The domain to check, e.g. example.com. No scheme or path.'}}}
Ausgabeschema
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['domain'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}, 'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'message'], 'properties': {'id': {'type': 'string'}, 'rfc': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'status': {'type': 'string'}, 'details': {'anyOf': [{}, {'type': 'null'}]}, 'message': {'type': 'string'}, 'section': {'type': 'string'}, 'severity': {'type': 'string'}}, 'additionalProperties': False}}, 'domain': {'type': 'string'}, 'provider': {'anyOf': [{'type': 'string'}, {'type': 'null'}]}, 'sections': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {'type': 'object', 'required': ['score', 'grade'], 'properties': {'grade': {'type': 'string'}, 'score': {'type': 'number'}}, 'additionalProperties': False}}, 'selector': {'type': 'string'}, 'permalink': {'type': 'string'}, 'smtp_note': {'type': 'string'}, 'created_at': {'type': 'number'}, 'expires_at': {'type': 'number'}, 'updated_at': {'type': 'number'}, 'smtp_status': {'type': 'string'}, 'poll_after_seconds': {'type': 'number'}}, 'additionalProperties': False}
Verlauf
Letzte Tool-Änderungen
Hinzugefügt
check_dkim
17. September 2026 12:54
Hinzugefügt
check_blacklist
17. September 2026 12:54
Hinzugefügt
check_dmarc
17. September 2026 12:54
Hinzugefügt
check_spf
17. September 2026 12:54
Hinzugefügt
check_mx
17. September 2026 12:54
Hinzugefügt
check_domain
17. September 2026 12:54
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