Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. USPS First-Class Mail has a published $2.00 one-page baseline. Extra pages add configured printing plus any postage increase from weight. If an account's normal first-page formula is lower, cost_breakdown.first_class_baseline_adjustment_cents itemizes the difference separately from carrier postage. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800). The same printing rates apply to every mail_class. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. USPS First-Class Mail has a published $2.00 one-page baseline. Extra pages add configured printing plus any postage increase from weight. If an account's normal first-page formula is lower, cost_breakdown.first_class_baseline_adjustment_cents itemizes the difference separately from carrier postage. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_2day then applies a fixed $8.00 customer price reduction (service_adjustment_cents: -800), while fedex_overnight retains its fixed $18.00 customer price adjustment (service_adjustment_cents: 1800). The same printing rates apply to every mail_class. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800). The same printing rates apply to every mail_class. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. USPS First-Class Mail has a published $2.00 one-page baseline. Extra pages add configured printing plus any postage increase from weight. If an account's normal first-page formula is lower, cost_breakdown.first_class_baseline_adjustment_cents itemizes the difference separately from carrier postage. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800). The same printing rates apply to every mail_class. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."

Previous value: -"Authoritative cost components. For color jobs, color_printing_per_page_cents is the total color-page printing price (70 cents by published default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by published default)."New value: +"Authoritative cost components. For color jobs, color_printing_per_page_cents is the total color-page printing price (70 cents by published default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by published default). For a below-formula First-Class quote, first_class_baseline_adjustment_cents is the amount added to reach the published $2.00 one-page baseline and is separate from postage_cents."

Previous value: -"Whether to include the additional $0.30/page color-print surcharge in the live estimate ($0.70/page total before handling and postage by default)."New value: +"Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800)."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800). The same printing rates apply to every mail_class. Color pages cost $0.70/page total by default before handling and postage: $0.40/page base B&W printing plus a $0.30/page additive color upgrade. In cost_breakdown, color_printing_per_page_cents is the total color-page printing price (70 cents by default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by default). Account-specific pricing can override these defaults; cost_breakdown is authoritative."

Added value: +{
+  "additionalProperties": true,
+  "description": "Authoritative cost components. For color jobs, color_printing_per_page_cents is the total color-page printing price (70 cents by published default), while color_surcharge_per_page_cents is the additive upgrade only (30 cents by published default).",
+  "type": "object"
+}

Previous value: -"Whether to include the additional $0.40/page color-print surcharge in the live estimate ($0.70/page total before handling and postage by default)."New value: +"Whether to include the additional $0.30/page color-print surcharge in the live estimate ($0.70/page total before handling and postage by default)."

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally; fedex_overnight then adds a fixed $18.00 customer price adjustment (service_adjustment_cents: 1800)."

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $10.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $20.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Added value: +{
+  "additionalProperties": true,
+  "description": "Human-readable review payload for CLI/chat confirmation: send-to address, return address, mail class, document preview URL, cost, safeguards, and next step.",
+  "type": "object"
+}

Added value: +{
+  "description": "Recipient city.",
+  "type": "string"
+}

Added value: +{
+  "description": "Recipient country code.",
+  "type": "string"
+}

Added value: +{
+  "description": "Recipient street address line 1.",
+  "type": "string"
+}

Added value: +{
+  "description": "Recipient street address line 2.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Recipient state.",
+  "type": "string"
+}

Added value: +{
+  "description": "Recipient ZIP code.",
+  "type": "string"
+}

Added value: +{
+  "description": "Authenticated dashboard URL a human can click to visually verify the submitted source document.",
+  "format": "uri",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "True only when status=failed because a mailed/tracked carrier item later failed delivery.",
+  "type": "boolean"
+}

Added value: +{
+  "description": "Timestamp when delivery was confirmed, if available.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Failure reason when status is failed and a reason is available.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "fedex_tracking when FedEx Track reported the carrier delivery failure; null otherwise.",
+  "enum": [
+    "fedex_tracking",
+    null
+  ],
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "carrier_delivery for carrier delivery failures; null for submission or fulfillment failures.",
+  "enum": [
+    "carrier_delivery",
+    null
+  ],
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Timestamp when the item entered the carrier/mail stream.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof. Use certified for USPS tracking plus proof of mailing/delivery; use certified_return_receipt when return-receipt evidence is required. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof; priority has a $15.00 published one-page floor. Use certified for USPS tracking plus proof of mailing/delivery; certified has a $10.00 published one-page floor. Use certified_return_receipt when electronic return-receipt evidence is required; certified_return_receipt has a $24.00 published one-page floor. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Previous value: -"Optional company or organization line for the simulated mailpiece."New value: +"Company or organization line for the simulated mailpiece. Optional when recipient_name is provided."

Previous value: -"Recipient name for the simulated mailpiece."New value: +"Recipient name for the simulated mailpiece. Optional when recipient_company is provided."

Previous value: -"Recipient name."New value: +"Recipient name, or null when the mail is addressed to a company only."

Previous value: -"string"New value: +[
+  "string",
+  "null"
+]

Added value: +{
+  "description": "Optional company or organization line for the simulated mailpiece.",
+  "type": "string"
+}

Added value: +{
+  "description": "Optional recipient company or organization line.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"Whether to include the additional $0.25/page color-print surcharge in the live estimate ($0.55/page total before handling and postage by default)."New value: +"Whether to include the additional $0.40/page color-print surcharge in the live estimate ($0.70/page total before handling and postage by default)."

Previous value: -"Whether to include color-print surcharge in the live estimate."New value: +"Whether to include the additional $0.25/page color-print surcharge in the live estimate ($0.55/page total before handling and postage by default)."

Previous value: -"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail legal proof. Use certified for USPS tracking plus proof of mailing/delivery; use certified_return_receipt when return-receipt evidence is required. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail proof. Use certified for USPS tracking plus proof of mailing/delivery; use certified_return_receipt when return-receipt evidence is required. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Previous value: -"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Do not infer speed, tracking, or proof from carrier marketing names. Use first_class for ordinary lowest-cost USPS letters with no carrier tracking number by default. Use priority for faster USPS Priority Mail with USPS Tracking, but not Certified Mail legal proof. Use certified for USPS tracking plus proof of mailing/delivery; use certified_return_receipt when return-receipt evidence is required. Use fedex_ground or ups_ground for budget private-carrier tracking; fedex_express means FedEx Express Saver/third-business-day, fedex_2day and ups_2day mean second-business-day, and fedex_overnight or ups_next_day mean next-business-day. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Added value: +{
+  "description": "Return address city.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Optional company or organization line for the return address.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Return address street line 1.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Return address street line 2.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Return address name.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Return address state.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Added value: +{
+  "description": "Return address ZIP.",
+  "type": [
+    "string",
+    "null"
+  ]
+}

Previous value: -"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required. FedEx express classes use conservative Standard List envelope estimates from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."New value: +"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required. FedEx express classes use the Standard List document baseline from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Previous value: -"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required."New value: +"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required. FedEx express classes use conservative Standard List envelope estimates from the configured fulfillment origin unless FedEx One Rate is explicitly configured operationally."

Previous value: -"Recipient ZIP code. Affects estimated live postage."New value: +"Recipient ZIP code. Affects estimated live postage, private-carrier zone, and FedEx local/regional/national area."

Previous value: -"Mail class to simulate."New value: +"Mail class to simulate. Postal or carrier service. Use first_class for ordinary USPS letters without guaranteed tracking. Use certified for USPS tracking and proof of mailing; use certified_return_receipt when a return receipt is required. Use fedex_* or ups_* classes when private-carrier tracking is required."

Previous value: -nullNew value: +{
+  "additionalProperties": false,
+  "properties": {
+    "result": {
+      "additionalProperties": true,
+      "description": "Created sandbox outbound mail job and webhook status.",
+      "properties": {
+        "message": {
+          "description": "Next step instructions for advancing the sandbox record.",
+          "type": "string"
+        },
+        "outbound_mail": {
+          "additionalProperties": true,
+          "description": "Outbound postal mail job summary.",
+          "properties": {
+            "carrier": {
+              "description": "Carrier name when available.",
+              "type": "string"
+            },
+            "cost_cents": {
+              "description": "Charged cost in cents, or 0 for sandbox/test records.",
+              "type": "integer"
+            },
+            "created_at": {
+              "description": "Creation timestamp.",
+              "format": "date-time",
+              "type": "string"
+            },
+            "id": {
+              "description": "Outbound mail job UUID.",
+              "format": "uuid",
+              "type": "string"
+            },
+            "mail_class": {
+              "description": "Selected postal or carrier service.",
+              "type": "string"
+            },
+            "page_count": {
+              "description": "Number of printed pages.",
+              "type": "integer"
+            },
+            "recipient_name": {
+              "description": "Recipient name.",
+              "type": "string"
+            },
+            "status": {
+              "description": "Current mail lifecycle status.",
+              "type": "string"
+            },
+            "test_mode": {
+              "description": "Whether this is a sandbox/test mail record.",
+              "type": "boolean"
+            },
+            "tracking_number": {
+              "description": "Carrier tracking number when available.",
+              "type": "string"
+            }
+          },
+          "type": "object"
+        }
+      },
+      "required": [
+        "outbound_mail",
+        "message"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "result"
+  ],
+  "type": "object"
+}