{
  "name": "mail.smtp.send",
  "description": "Sends one or more email messages through SMTP from child [message] nodes",
  "signature": {
    "children": {
      "message": {
        "type": "lambda",
        "kind": "mail-message",
        "description": "Email message to send",
        "required": true,
        "mode": "StructuredArguments",
        "cardinality": "OneOrMore",
        "role": "StructuredObject",
        "projection": "StructuredTree",
        "children": {
          "subject": {
            "type": "string",
            "kind": "mail-subject,text",
            "description": "Message subject",
            "required": false,
            "mode": "ValueOrExpression",
            "cardinality": "ZeroOrOne",
            "role": "Option",
            "projection": "Value"
          },
          "to": {
            "type": "lambda",
            "kind": "mail-address-list",
            "description": "Email address collection",
            "required": true,
            "mode": "StructuredArguments",
            "cardinality": "ExactlyOne",
            "role": "StructuredObject",
            "projection": "Children",
            "children": [
              {
                "type": "lambda",
                "kind": "mail-address",
                "description": "Structured address containing [email] and optional [name]",
                "required": true,
                "mode": "StructuredArguments",
                "cardinality": "OneOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "children": {
                  "name": {
                    "type": "string",
                    "kind": "display-name,text",
                    "description": "Display name",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "email": {
                    "type": "string",
                    "kind": "email",
                    "description": "Email address",
                    "required": true,
                    "mode": "ValueOrExpression",
                    "cardinality": "ExactlyOne",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              }
            ]
          },
          "from": {
            "type": "lambda",
            "kind": "mail-address-list",
            "description": "Email address collection",
            "required": false,
            "mode": "StructuredArguments",
            "cardinality": "ZeroOrOne",
            "role": "StructuredObject",
            "projection": "Children",
            "children": [
              {
                "type": "lambda",
                "kind": "mail-address",
                "description": "Structured address containing [email] and optional [name]",
                "required": false,
                "mode": "StructuredArguments",
                "cardinality": "ZeroOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "children": {
                  "name": {
                    "type": "string",
                    "kind": "display-name,text",
                    "description": "Display name",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "email": {
                    "type": "string",
                    "kind": "email",
                    "description": "Email address",
                    "required": true,
                    "mode": "ValueOrExpression",
                    "cardinality": "ExactlyOne",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              }
            ]
          },
          "cc": {
            "type": "lambda",
            "kind": "mail-address-list",
            "description": "Email address collection",
            "required": false,
            "mode": "StructuredArguments",
            "cardinality": "ZeroOrOne",
            "role": "StructuredObject",
            "projection": "Children",
            "children": [
              {
                "type": "lambda",
                "kind": "mail-address",
                "description": "Structured address containing [email] and optional [name]",
                "required": false,
                "mode": "StructuredArguments",
                "cardinality": "ZeroOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "children": {
                  "name": {
                    "type": "string",
                    "kind": "display-name,text",
                    "description": "Display name",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "email": {
                    "type": "string",
                    "kind": "email",
                    "description": "Email address",
                    "required": true,
                    "mode": "ValueOrExpression",
                    "cardinality": "ExactlyOne",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              }
            ]
          },
          "bcc": {
            "type": "lambda",
            "kind": "mail-address-list",
            "description": "Email address collection",
            "required": false,
            "mode": "StructuredArguments",
            "cardinality": "ZeroOrOne",
            "role": "StructuredObject",
            "projection": "Children",
            "children": [
              {
                "type": "lambda",
                "kind": "mail-address",
                "description": "Structured address containing [email] and optional [name]",
                "required": false,
                "mode": "StructuredArguments",
                "cardinality": "ZeroOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "children": {
                  "name": {
                    "type": "string",
                    "kind": "display-name,text",
                    "description": "Display name",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "email": {
                    "type": "string",
                    "kind": "email",
                    "description": "Email address",
                    "required": true,
                    "mode": "ValueOrExpression",
                    "cardinality": "ExactlyOne",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              }
            ]
          },
          "reply-to": {
            "type": "lambda",
            "kind": "mail-address-list",
            "description": "Email address collection",
            "required": false,
            "mode": "StructuredArguments",
            "cardinality": "ZeroOrOne",
            "role": "StructuredObject",
            "projection": "Children",
            "children": [
              {
                "type": "lambda",
                "kind": "mail-address",
                "description": "Structured address containing [email] and optional [name]",
                "required": false,
                "mode": "StructuredArguments",
                "cardinality": "ZeroOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "children": {
                  "name": {
                    "type": "string",
                    "kind": "display-name,text",
                    "description": "Display name",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "email": {
                    "type": "string",
                    "kind": "email",
                    "description": "Email address",
                    "required": true,
                    "mode": "ValueOrExpression",
                    "cardinality": "ExactlyOne",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              }
            ]
          },
          "entity": {
            "type": "string",
            "kind": "content-type",
            "description": "MIME entity declaration for the message body; node value is the MIME content type",
            "required": true,
            "mode": "Value",
            "cardinality": "ExactlyOne",
            "role": "Payload",
            "evaluation": "UnwrapDescendants",
            "projection": "StructuredTree",
            "constraints": [
              {
                "description": "Binary MIME parts cannot carry inline [content] — reference the bytes via [filename]",
                "value-pattern": "^(image/|video/|audio/|application/(octet-stream|pdf|zip|gzip|x-tar|x-bzip2|x-7z-compressed|vnd\\.ms-excel|vnd\\.openxmlformats-officedocument))",
                "values": [
                  "content"
                ],
                "kind": "Excludes"
              },
              {
                "description": "Leaf MIME parts must not contain nested [entity] children",
                "value-pattern": "^(?!multipart/).+/.+$",
                "values": [
                  "entity"
                ],
                "kind": "Excludes"
              },
              {
                "description": "Leaf MIME parts require either [content] or [filename]",
                "value-pattern": "^(?!multipart/).+/.+$",
                "values": [
                  "content",
                  "filename"
                ],
                "kind": "ExactlyOneOf"
              },
              {
                "description": "Multipart MIME parts must not contain [content] or [filename]",
                "value-pattern": "^multipart/.+$",
                "values": [
                  "content",
                  "filename"
                ],
                "kind": "Excludes"
              },
              {
                "description": "Multipart MIME parts require two or more [entity] children",
                "value-pattern": "^multipart/.+$",
                "values": [
                  "entity"
                ],
                "kind": "AtLeastOneOf"
              }
            ],
            "children": {
              "headers": {
                "type": "lambda",
                "kind": "mime-header-list",
                "description": "MIME headers",
                "required": false,
                "mode": "DynamicNamedValues",
                "cardinality": "ZeroOrOne",
                "role": "DynamicMap",
                "projection": "StructuredTree",
                "children": {
                  "*": {
                    "type": "string",
                    "kind": "mime-header-value",
                    "description": "Header name and value",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrMore",
                    "role": "Option",
                    "projection": "Value"
                  }
                }
              },
              "content": {
                "type": "string",
                "kind": "mime-content,mime-entity-source,text",
                "description": "Inline MIME part content",
                "required": false,
                "mode": "ValueOrExpression",
                "cardinality": "ZeroOrOne",
                "role": "Option",
                "projection": "Value"
              },
              "filename": {
                "type": "string",
                "kind": "file-path,mime-entity-source,mime-entity-filename-source",
                "description": "File path to use as MIME part content",
                "required": false,
                "mode": "ValueOrExpression",
                "cardinality": "ZeroOrOne",
                "role": "Option",
                "projection": "Value"
              },
              "entity": {
                "type": "string",
                "kind": "content-type",
                "description": "Nested MIME entity content type; same leaf-vs-multipart shape as the parent [mime.create] value",
                "required": true,
                "mode": "Value",
                "cardinality": "TwoOrMore",
                "role": "StructuredObject",
                "projection": "StructuredTree",
                "constraints": [
                  {
                    "description": "Binary MIME parts cannot carry inline [content] — reference the bytes via [filename]",
                    "value-pattern": "^(image/|video/|audio/|application/(octet-stream|pdf|zip|gzip|x-tar|x-bzip2|x-7z-compressed|vnd\\.ms-excel|vnd\\.openxmlformats-officedocument))",
                    "values": [
                      "content"
                    ],
                    "kind": "Excludes"
                  },
                  {
                    "description": "Leaf MIME parts must not contain nested [entity] children",
                    "value-pattern": "^(?!multipart/).+/.+$",
                    "values": [
                      "entity"
                    ],
                    "kind": "Excludes"
                  },
                  {
                    "description": "Leaf MIME parts require either [content] or [filename]",
                    "value-pattern": "^(?!multipart/).+/.+$",
                    "values": [
                      "content",
                      "filename"
                    ],
                    "kind": "ExactlyOneOf"
                  },
                  {
                    "description": "Multipart MIME parts must not contain [content] or [filename]",
                    "value-pattern": "^multipart/.+$",
                    "values": [
                      "content",
                      "filename"
                    ],
                    "kind": "Excludes"
                  },
                  {
                    "description": "Multipart MIME parts require two or more [entity] children",
                    "value-pattern": "^multipart/.+$",
                    "values": [
                      "entity"
                    ],
                    "kind": "AtLeastOneOf"
                  }
                ],
                "children": {
                  "headers": {
                    "type": "lambda",
                    "kind": "mime-header-list",
                    "description": "MIME headers",
                    "required": false,
                    "mode": "DynamicNamedValues",
                    "cardinality": "ZeroOrOne",
                    "role": "DynamicMap",
                    "projection": "StructuredTree",
                    "children": {
                      "*": {
                        "type": "string",
                        "kind": "mime-header-value",
                        "description": "Header name and value",
                        "required": false,
                        "mode": "ValueOrExpression",
                        "cardinality": "ZeroOrMore",
                        "role": "Option",
                        "projection": "Value"
                      }
                    }
                  },
                  "content": {
                    "type": "string",
                    "kind": "mime-content,mime-entity-source,text",
                    "description": "Inline MIME part content",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "filename": {
                    "type": "string",
                    "kind": "file-path,mime-entity-source,mime-entity-filename-source",
                    "description": "File path to use as MIME part content",
                    "required": false,
                    "mode": "ValueOrExpression",
                    "cardinality": "ZeroOrOne",
                    "role": "Option",
                    "projection": "Value"
                  },
                  "entity": {
                    "type": "string",
                    "kind": "mime-content-types-leaf",
                    "description": "Innermost MIME leaf entity content type; must be a leaf type because no further [entity] nesting is permitted here",
                    "required": true,
                    "mode": "Value",
                    "cardinality": "TwoOrMore",
                    "role": "StructuredObject",
                    "projection": "StructuredTree",
                    "constraints": [
                      {
                        "description": "Binary MIME parts cannot carry inline [content] — reference the bytes via [filename]",
                        "value-pattern": "^(image/|video/|audio/|application/(octet-stream|pdf|zip|gzip|x-tar|x-bzip2|x-7z-compressed|vnd\\.ms-excel|vnd\\.openxmlformats-officedocument))",
                        "values": [
                          "content"
                        ],
                        "kind": "Excludes"
                      },
                      {
                        "description": "Leaf MIME parts must not contain nested [entity] children",
                        "value-pattern": "^(?!multipart/).+/.+$",
                        "values": [
                          "entity"
                        ],
                        "kind": "Excludes"
                      },
                      {
                        "description": "Leaf MIME parts require either [content] or [filename]",
                        "value-pattern": "^(?!multipart/).+/.+$",
                        "values": [
                          "content",
                          "filename"
                        ],
                        "kind": "ExactlyOneOf"
                      },
                      {
                        "description": "Multipart MIME parts must not contain [content] or [filename]",
                        "value-pattern": "^multipart/.+$",
                        "values": [
                          "content",
                          "filename"
                        ],
                        "kind": "Excludes"
                      },
                      {
                        "description": "Multipart MIME parts require two or more [entity] children",
                        "value-pattern": "^multipart/.+$",
                        "values": [
                          "entity"
                        ],
                        "kind": "AtLeastOneOf"
                      }
                    ],
                    "children": {
                      "headers": {
                        "type": "lambda",
                        "kind": "mime-header-list",
                        "description": "MIME headers",
                        "required": false,
                        "mode": "DynamicNamedValues",
                        "cardinality": "ZeroOrOne",
                        "role": "DynamicMap",
                        "projection": "StructuredTree",
                        "children": {
                          "*": {
                            "type": "string",
                            "kind": "mime-header-value",
                            "description": "Header name and value",
                            "required": false,
                            "mode": "ValueOrExpression",
                            "cardinality": "ZeroOrMore",
                            "role": "Option",
                            "projection": "Value"
                          }
                        }
                      },
                      "content": {
                        "type": "string",
                        "kind": "mime-content,mime-entity-source,text",
                        "description": "Inline MIME part content",
                        "required": false,
                        "mode": "ValueOrExpression",
                        "cardinality": "ZeroOrOne",
                        "role": "Option",
                        "projection": "Value"
                      },
                      "filename": {
                        "type": "string",
                        "kind": "file-path,mime-entity-source,mime-entity-filename-source",
                        "description": "File path to use as MIME part content",
                        "required": false,
                        "mode": "ValueOrExpression",
                        "cardinality": "ZeroOrOne",
                        "role": "Option",
                        "projection": "Value"
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}