Workflow: Mailcheck Airtable

{
    "nodes": [
        {
            "name": "Airtable",
            "type": "n8n-nodes-base.airtable",
            "position": [
                470,
                200
            ],
            "parameters": {
                "table": "Table 1",
                "operation": "list",
                "additionalOptions": []
            },
            "credentials": {
                "airtableApi": ""
            },
            "typeVersion": 1
        },
        {
            "name": "Mailcheck",
            "type": "n8n-nodes-base.mailcheck",
            "position": [
                670,
                200
            ],
            "parameters": {
                "email": "={{$json[\"fields\"][\"Email\"]}}"
            },
            "credentials": {
                "mailcheckApi": "Mailcheck API Credentials"
            },
            "typeVersion": 1
        },
        {
            "name": "Set",
            "type": "n8n-nodes-base.set",
            "position": [
                870,
                200
            ],
            "parameters": {
                "values": {
                    "string": [
                        {
                            "name": "ID",
                            "value": "={{$node[\"Airtable\"].json[\"id\"]}}"
                        }
                    ],
                    "boolean": [
                        {
                            "name": "Valid",
                            "value": "={{$json[\"mxExists\"]}}"
                        }
                    ]
                },
                "options": [],
                "keepOnlySet": true
            },
            "typeVersion": 1
        },
        {
            "name": "Airtable1",
            "type": "n8n-nodes-base.airtable",
            "position": [
                1070,
                200
            ],
            "parameters": {
                "id": "={{$json[\"ID\"]}}",
                "table": "=Table 1",
                "fields": [
                    "Valid"
                ],
                "options": [],
                "operation": "update",
                "application": "={{$node[\"Airtable\"].parameter[\"application\"]}}",
                "updateAllFields": false
            },
            "credentials": {
                "airtableApi": "Airtable Credentials n8n"
            },
            "typeVersion": 1
        }
    ],
    "connections": {
        "Set": {
            "main": [
                [
                    {
                        "node": "Airtable1",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Airtable": {
            "main": [
                [
                    {
                        "node": "Mailcheck",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Mailcheck": {
            "main": [
                [
                    {
                        "node": "Set",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}