diff --git a/Package.swift b/Package.swift
index 3c709f2..fce5165 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,12 +1,12 @@
-// swift-tools-version:5.1
+// swift-tools-version:5.2
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
 
 let package = Package(
-    name: "Mailgun",
+    name: "VaporMailgunService",
     platforms: [
-       .macOS(.v10_14)
+       .macOS(.v10_15)
     ],
     products: [
         // Products define the executables and libraries produced by a package, and make them visible to other packages.
@@ -15,7 +15,7 @@ let package = Package(
             targets: ["Mailgun"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0-beta.3")
+        .package(url: "https://github.com/vapor/vapor.git", from: "4.0.0-rc")
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
@@ -23,10 +23,12 @@ let package = Package(
         .target(
             name: "Mailgun",
             dependencies: [
-                "Vapor"
+                .product(name: "Vapor", package: "vapor"),
             ]),
         .testTarget(
             name: "MailgunTests",
-            dependencies: ["Mailgun"]),
+            dependencies: [
+                .target(name: "Mailgun"),
+        ]),
     ]
 )
diff --git a/README.md b/README.md
index 809ab91..195aace 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # Vapor Mailgun Service
 
 [![Discord](https://img.shields.io/badge/join-discord-745EAF.svg?style=flat)](https://vapor.team)
-[![Platforms](https://img.shields.io/badge/platforms-macOS%2010.14%20|%20Ubuntu%2016.04%20LTS-ff0000.svg?style=flat)](http://cocoapods.org/pods/FASwift)
-[![Swift 5.1](https://img.shields.io/badge/swift-5.1-orange.svg?style=flat)](http://swift.org)
+[![Platforms](https://img.shields.io/badge/platforms-macOS%2010.15%20|%20Ubuntu%2016.04%20LTS-ff0000.svg?style=flat)](http://cocoapods.org/pods/FASwift)
+[![Swift 5.2](https://img.shields.io/badge/swift-5.2-orange.svg?style=flat)](http://swift.org)
 [![Vapor 4](https://img.shields.io/badge/vapor-4.0-blue.svg?style=flat)](https://vapor.codes)
 
 ##
@@ -15,10 +15,12 @@
 Vapor Mailgun Service can be installed with Swift Package Manager
 
 ```swift
-.package(url: "https://github.com/twof/VaporMailgunService.git", from: "4.0.0")
+.package(url: "https://github.com/twof/VaporMailgunService.git", from: "4.0.0-rc")
 
-//and in targets add
-//"Mailgun"
+.target(name: "App", dependencies: [
+    .product(name: "Vapor", package: "vapor"),
+    .product(name: "Mailgun", package: "VaporMailgunService")
+])
 ```
 
 ## Usage
@@ -43,7 +45,7 @@ func configure(_ app: Application) throws {
     /// case 2
     /// manually
     app.mailgun.configuration = .init(apiKey: "<api key>")
-} 
+}
 ```
 
 > Note: If your private api key begins with `key-`, be sure to include it
@@ -87,12 +89,12 @@ import Mailgun
 // Called before your application initializes.
 func configure(_ app: Application) throws {
     /// configure mailgun
-    
+
     /// then you're ready to use it
     app.mailgun(.myApp1).send(...).whenSuccess { response in
         print("just sent: \(response)")
     }
-} 
+}
 ```
 
 > 💡 NOTE: All the examples below will be with `Request`, but you could do the same with `Application` as in example above.
@@ -197,7 +199,7 @@ func routes(_ app: Application) throws {
             text: "",
             html: content
         )
-        
+
         return req.mailgun().send(message)
     }
 }
diff --git a/Sources/Mailgun/Models/IncomingMessage.swift b/Sources/Mailgun/Models/IncomingMessage.swift
index c6101ca..2313c49 100644
--- a/Sources/Mailgun/Models/IncomingMessage.swift
+++ b/Sources/Mailgun/Models/IncomingMessage.swift
@@ -3,7 +3,7 @@ import Vapor
 public struct MailgunIncomingMessage: Content {
     public static var defaultContentType: HTTPMediaType = .formData
     
-    public let recipients: String
+    public let recipient: String
     public let sender: String
     public let from: String
     public let subject: String
@@ -14,22 +14,62 @@ public struct MailgunIncomingMessage: Content {
     public let strippedHTML: String
     public let messageHeaders: String
     public let contentIdMap: String
-    public let attachments: [Attachment]?
+    public let attachments: [File]
     
     enum CodingKeys: String, CodingKey {
-        case recipients
+        case recipient
         case sender
         case from
         case subject
         case bodyPlain = "body-plain"
         case strippedText = "stripped-text"
-        case strippedSignature = "stripped-signiture"
+        case strippedSignature = "stripped-signature"
         case bodyHTML = "body-html"
         case strippedHTML = "stripped-html"
         case messageHeaders = "message-headers"
         case contentIdMap = "content-id-map"
         case attachments
     }
+    
+    struct DynamicAttachmentKey: CodingKey {
+        var stringValue: String
+        
+        init?(stringValue: String) {
+            guard stringValue.hasPrefix("attachment-") else { return nil }
+            guard let lastKey = stringValue.components(separatedBy: "-").last,
+                let _ = Int(lastKey)
+                else { return nil}
+            self.stringValue = stringValue
+        }
+        
+        var intValue: Int?
+        
+        init?(intValue: Int) {
+            return nil
+        }
+    }
+    
+    public init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        recipient = try container.decode(String.self, forKey: .recipient)
+        sender = try container.decode(String.self, forKey: .sender)
+        from = try container.decode(String.self, forKey: .from)
+        subject = try container.decode(String.self, forKey: .subject)
+        bodyPlain = try container.decode(String.self, forKey: .bodyPlain)
+        strippedText = try container.decode(String.self, forKey: .strippedText)
+        strippedSignature = try container.decodeIfPresent(String.self, forKey: .strippedSignature)
+        bodyHTML = try container.decode(String.self, forKey: .bodyHTML)
+        strippedHTML = try container.decode(String.self, forKey: .strippedHTML)
+        messageHeaders = try container.decode(String.self, forKey: .messageHeaders)
+        contentIdMap = try container.decode(String.self, forKey: .contentIdMap)
+
+        var _attachments: [File] = []
+        let attachmentsContainer = try decoder.container(keyedBy: DynamicAttachmentKey.self)
+        try attachmentsContainer.allKeys.forEach { attachmentKey in
+            _attachments.append(try attachmentsContainer.decode(File.self, forKey: attachmentKey))
+        }
+        attachments = _attachments
+    }
 }
 
 extension MailgunIncomingMessage {