diff --git a/enzevalos_iphone.xcodeproj/project.pbxproj b/enzevalos_iphone.xcodeproj/project.pbxproj
index e6905e90923eec20143baf91e040ce12ec76ab3f..a84709db4ecd99096269465d65b2e7a95459221a 100644
--- a/enzevalos_iphone.xcodeproj/project.pbxproj
+++ b/enzevalos_iphone.xcodeproj/project.pbxproj
@@ -125,6 +125,7 @@
 		47F867E22052B48E00AA832F /* libz.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 47F867E12052B48E00AA832F /* libz.tbd */; };
 		47F867E42052B49800AA832F /* libbz2.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 47F867E32052B49800AA832F /* libbz2.tbd */; };
 		50F2E7D66366C779705987A7 /* Pods_enzevalos_iphoneUITests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AF67EF30BB065CC9C0D17940 /* Pods_enzevalos_iphoneUITests.framework */; };
+		71DFE5BA240679E80042019C /* HeaderExtractionValues.swift in Sources */ = {isa = PBXBuildFile; fileRef = 71DFE5B9240679E80042019C /* HeaderExtractionValues.swift */; };
 		7500EE9D4F3130671F5C1AE2 /* Pods_enzevalos_iphoneTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 7977EA7012D8E98D186D5C60 /* Pods_enzevalos_iphoneTests.framework */; };
 		8428A8531F4369C0007649A5 /* Gamification.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 8428A8521F4369C0007649A5 /* Gamification.storyboard */; };
 		8428A8551F4369CF007649A5 /* GamificationElements.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 8428A8541F4369CF007649A5 /* GamificationElements.xcassets */; };
@@ -385,6 +386,7 @@
 		48C250BB32BF11B683003BA1 /* Pods-enzevalos_iphone-enzevalos_iphoneUITests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-enzevalos_iphone-enzevalos_iphoneUITests.debug.xcconfig"; path = "../enzevalos_iphone_workspace/Pods/Target Support Files/Pods-enzevalos_iphone-enzevalos_iphoneUITests/Pods-enzevalos_iphone-enzevalos_iphoneUITests.debug.xcconfig"; sourceTree = "<group>"; };
 		66E758F271CD65AB3E5FE7A7 /* Pods-enzevalos_iphoneUITests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-enzevalos_iphoneUITests.debug.xcconfig"; path = "../enzevalos_iphone_workspace/Pods/Target Support Files/Pods-enzevalos_iphoneUITests/Pods-enzevalos_iphoneUITests.debug.xcconfig"; sourceTree = "<group>"; };
 		6EBCCD02AD3B95D8317810E2 /* Pods-enzevalos_iphoneTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-enzevalos_iphoneTests.debug.xcconfig"; path = "../enzevalos_iphone_workspace/Pods/Target Support Files/Pods-enzevalos_iphoneTests/Pods-enzevalos_iphoneTests.debug.xcconfig"; sourceTree = "<group>"; };
+		71DFE5B9240679E80042019C /* HeaderExtractionValues.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HeaderExtractionValues.swift; sourceTree = "<group>"; };
 		796D16D79BED5D60B580E602 /* Pods-enzevalos_iphoneUITests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-enzevalos_iphoneUITests.release.xcconfig"; path = "../enzevalos_iphone_workspace/Pods/Target Support Files/Pods-enzevalos_iphoneUITests/Pods-enzevalos_iphoneUITests.release.xcconfig"; sourceTree = "<group>"; };
 		7977EA7012D8E98D186D5C60 /* Pods_enzevalos_iphoneTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_enzevalos_iphoneTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		8428A8521F4369C0007649A5 /* Gamification.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = Gamification.storyboard; sourceTree = "<group>"; };
@@ -683,6 +685,7 @@
 				477548DD21F5DABE000B22A8 /* MailServerConnectionError.swift */,
 				47CEAC97222541B40075B7DC /* MailSession.swift */,
 				478AF714222FD5C600AEF69E /* IncomingMail.swift */,
+				71DFE5B9240679E80042019C /* HeaderExtractionValues.swift */,
 			);
 			name = mail;
 			sourceTree = "<group>";
@@ -1621,6 +1624,7 @@
 				F12060821DA552FC00F6EF37 /* MailHandlerDelegator.swift in Sources */,
 				474994022261E4E6000F8DA5 /* SimpleSendIcon.swift in Sources */,
 				A12F91D821F3A99800AB0589 /* NSLayoutConstraintExtension.swift in Sources */,
+				71DFE5BA240679E80042019C /* HeaderExtractionValues.swift in Sources */,
 				A18E7D771FBDE5D9002F7CC9 /* LoggingEventType.swift in Sources */,
 				F1984D741E1E92B300804E1E /* LabelStyleKit.swift in Sources */,
 				A1FA44A721E10E1400DB02AC /* TravelHandler.swift in Sources */,
diff --git a/enzevalos_iphone.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/enzevalos_iphone.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000000000000000000000000000000000000..18d981003d68d0546c4804ac2ff47dd97c6e7921
--- /dev/null
+++ b/enzevalos_iphone.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/enzevalos_iphone/HeaderExtractionValues.swift b/enzevalos_iphone/HeaderExtractionValues.swift
new file mode 100644
index 0000000000000000000000000000000000000000..224f4be5b3cf1a3ee9c2af20c113b5a04d61bf3f
--- /dev/null
+++ b/enzevalos_iphone/HeaderExtractionValues.swift
@@ -0,0 +1,19 @@
+//
+//  HeaderExtractionValues.swift
+//  enzevalos_iphone
+//
+//  Created by Katharina Müller on 26.02.20.
+//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+
+import Foundation
+enum HeaderExtractionValues: String {
+    case MIMEVersion = "MIME-Version"
+    case Received = "Received"
+    case ContentType = "Content-Type"
+    case ContentTransferEncoding = "Content-Transfer-Encoding"
+    case ContentDisposition = "Content-Disposition" //i.e. used by smime
+    case DKIMSignature = "DKIM-Siagnature"//DomainKeys for e-mail authentication
+    case InReplyTo = "In-Reply-To"
+    case XMailer = "X-Mailer" //Information about the mail server
+}
diff --git a/enzevalos_iphone/OutgoingMail.swift b/enzevalos_iphone/OutgoingMail.swift
index 723ecc5854ce920dfe8d8aee17b844e1697462f6..797b0405079748539729f290c501a50d441b889f 100644
--- a/enzevalos_iphone/OutgoingMail.swift
+++ b/enzevalos_iphone/OutgoingMail.swift
@@ -329,6 +329,7 @@ class OutgoingMail {
         builder.header.bcc = bccEntrys
         builder.header.from = sender
         builder.header.subject = subject
+       // builder.header.setExtraHeaderValue("1.0", forName: "MIME-Version")
         builder.header.setExtraHeaderValue("letterbox", forName: "X-Mailer")
         if autocrypt {
             Autocrypt.addAutocryptHeader(builder)
diff --git a/enzevalos_iphone/mail/IncomingMail.swift b/enzevalos_iphone/mail/IncomingMail.swift
index 0ebfafeb90b48fe7b56809ca0a65ed1c87aeb188..937a6b2c5d149766bf0a33d93f5a9875dae8a2ba 100644
--- a/enzevalos_iphone/mail/IncomingMail.swift
+++ b/enzevalos_iphone/mail/IncomingMail.swift
@@ -162,6 +162,15 @@ class IncomingMail {
     private var boundary: String?
     private var msgID: String = ""
     private var userAgent: String = ""
+    private var mimeVersion: String = ""
+    private var received: String = ""
+    private var contentType: String = ""
+    private var contentTransferEncoding: String = ""
+    private var contentDisposition: String = ""
+    private var dkimSignature: String = ""
+    private var inReplyTo: String = ""
+    private var xMailer: String = ""
+    
     
     // Body info
     private var secretKey: String? = nil
@@ -660,6 +669,38 @@ class IncomingMail {
             if let agent = header.userAgent {
                 userAgent = agent
             }
+            if let mime = header.extraHeaderValue(forName: HeaderExtractionValues.MIMEVersion.rawValue) {
+               mimeVersion = mime
+                //print("MIME-Version: ", mimeVersion)
+            }
+            if let received_h =  header.extraHeaderValue(forName: HeaderExtractionValues.Received.rawValue) {
+                received = received_h
+                //print("Received: ", received)
+            }
+            if let content = header.extraHeaderValue(forName: HeaderExtractionValues.ContentType.rawValue){
+                contentType = content
+                //print("ContentType: ", contentType)
+            }
+            if let contentTransEncode = header.extraHeaderValue(forName: HeaderExtractionValues.ContentTransferEncoding.rawValue){
+                contentTransferEncoding = contentTransEncode
+                //print("ContentTransEnc: ", contentTransferEncoding)
+            }
+            if let contentDispos =  header.extraHeaderValue(forName: HeaderExtractionValues.ContentDisposition.rawValue) {
+                contentDisposition = contentDispos
+                //print("ContentDisposition: " , contentDisposition)
+            }
+            if let dkimSig =  header.extraHeaderValue(forName: HeaderExtractionValues.DKIMSignature.rawValue){
+                dkimSignature = dkimSig
+                //print("DKIMSignature: ", dkimSignature)
+            }
+            if let inReplyToo = header.extraHeaderValue(forName: HeaderExtractionValues.InReplyTo.rawValue){
+                inReplyTo = inReplyToo
+                //print("In-Reply-To: ", inReplyTo)
+            }
+            if let xMail = header.extraHeaderValue(forName: HeaderExtractionValues.XMailer.rawValue){
+                xMailer = xMail
+                //print("X-Mailer: ", xMailer)
+            }
             boundary = findBoundary()
         }
     }