diff --git a/enzevalos_iphone/SwiftUI/Compose/ComposeHeaderView.swift b/enzevalos_iphone/SwiftUI/Compose/ComposeHeaderView.swift
index 1927a048194bbb60be8d831c04ec7abe6f2ff536..04f9be03b122c71c95488db63658c73ff61e96ec 100644
--- a/enzevalos_iphone/SwiftUI/Compose/ComposeHeaderView.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/ComposeHeaderView.swift
@@ -3,7 +3,19 @@
 //  enzevalos_iphone
 //
 //  Created by Chris Offner & Claire Bräuer on 23.03.21.
-//  Copyright © 2021 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI
diff --git a/enzevalos_iphone/SwiftUI/Compose/ComposeModel.swift b/enzevalos_iphone/SwiftUI/Compose/ComposeModel.swift
index 4a85b6453f12d8c9cb413a8144e78f5b19510138..5a92c8a2f4d665fdc13bc2e4e355b483124b80e8 100644
--- a/enzevalos_iphone/SwiftUI/Compose/ComposeModel.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/ComposeModel.swift
@@ -4,7 +4,19 @@
 //
 //  Created by Oliver Wiese on 12.11.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import Foundation
diff --git a/enzevalos_iphone/SwiftUI/Compose/ComposeView.swift b/enzevalos_iphone/SwiftUI/Compose/ComposeView.swift
index 937ceb3fd6d33f013050ec9f272a0d1df42db7a5..f1d63407e6db9ccb98bbaaf85c7dd8bab310c7cf 100644
--- a/enzevalos_iphone/SwiftUI/Compose/ComposeView.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/ComposeView.swift
@@ -1,9 +1,22 @@
 //
 //  ComposeView.swift
-//  letterbox_prototyping
+//  enzevalos_iphone
 //
 //  Created by Chris Offner & Claire Bräuer on 03.03.21.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
+//
 
 import SwiftUI
 
diff --git a/enzevalos_iphone/SwiftUI/Compose/RecipientFieldModel.swift b/enzevalos_iphone/SwiftUI/Compose/RecipientFieldModel.swift
index 2979c8213f42105a4c4cd9af1e2ff282973f36ab..02dc92090dfe594746409d96a12874c499870504 100644
--- a/enzevalos_iphone/SwiftUI/Compose/RecipientFieldModel.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/RecipientFieldModel.swift
@@ -1,10 +1,22 @@
 //
-//  TokenFieldModel.swift
+//  RecipientFieldModel.swift
 //  enzevalos_iphone
 //
 //  Created by Oliver Wiese on 31.10.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import Combine
diff --git a/enzevalos_iphone/SwiftUI/Compose/RecipientListView.swift b/enzevalos_iphone/SwiftUI/Compose/RecipientListView.swift
index 6663d18655be20d6bded7433e67588f40309fa25..62facc14430b92574b5680892b9ef728389ff4cf 100644
--- a/enzevalos_iphone/SwiftUI/Compose/RecipientListView.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/RecipientListView.swift
@@ -4,6 +4,19 @@
 //
 //  Created by Chris Offner & Claire Bräuer on 11.03.21.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
+//
 
 import SwiftUI
 
diff --git a/enzevalos_iphone/SwiftUI/Compose/RecipientRowView.swift b/enzevalos_iphone/SwiftUI/Compose/RecipientRowView.swift
index d09c63355bb6ed077e5268d068c4031b0c0d4ecc..f744f37f7c1258de05f2792899a746d6c1caf757 100644
--- a/enzevalos_iphone/SwiftUI/Compose/RecipientRowView.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/RecipientRowView.swift
@@ -1,9 +1,22 @@
 //
-//  recipientRowView.swift
+//  RecipientRowView.swift
 //  letterbox_prototyping
 //
 //  Created by Chris Offner & Claire Bräuer on 11.03.21.
 //
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
+//
 
 import SwiftUI
 
diff --git a/enzevalos_iphone/SwiftUI/Compose/RecipientsModel.swift b/enzevalos_iphone/SwiftUI/Compose/RecipientsModel.swift
index 1e2c54290c9a45c60fd369f14bc32b89ef54f7f0..9a3e5d2af808e77475ab3c5c4294ecbb76899409 100644
--- a/enzevalos_iphone/SwiftUI/Compose/RecipientsModel.swift
+++ b/enzevalos_iphone/SwiftUI/Compose/RecipientsModel.swift
@@ -1,10 +1,22 @@
 //
-//  SelectReceiverModel.swift
+//  RecipientsModel.swift
 //  enzevalos_iphone
 //
 //  Created by Oliver Wiese on 09.11.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import Foundation
diff --git a/enzevalos_iphone/SwiftUI/FolderView/FolderListView.swift b/enzevalos_iphone/SwiftUI/FolderView/FolderListView.swift
index db92989d0a93259cfe8659109c941885715f9157..67331fe3d43f94eb10d0539ef819c4a026134078 100644
--- a/enzevalos_iphone/SwiftUI/FolderView/FolderListView.swift
+++ b/enzevalos_iphone/SwiftUI/FolderView/FolderListView.swift
@@ -4,7 +4,19 @@
 //
 //  Created by Oliver Wiese on 30.10.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI
diff --git a/enzevalos_iphone/SwiftUI/Inbox/InboxRefreshModel.swift b/enzevalos_iphone/SwiftUI/Inbox/InboxRefreshModel.swift
index 75310c4caefe88908463429319aa90ed01bdc35b..f092db05a3a4c4b1fd7791748f7c528dff346b08 100644
--- a/enzevalos_iphone/SwiftUI/Inbox/InboxRefreshModel.swift
+++ b/enzevalos_iphone/SwiftUI/Inbox/InboxRefreshModel.swift
@@ -3,7 +3,19 @@
 //  enzevalos_iphone
 //
 //  Created by Chris Offner on 29.03.21.
-//  Copyright © 2021 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import Foundation
diff --git a/enzevalos_iphone/SwiftUI/Inbox/InboxView.swift b/enzevalos_iphone/SwiftUI/Inbox/InboxView.swift
index e9bde0403b70d8d9469c1b4a17a20b23fb8c3294..a062bd5a7b249f0b4c7e19b02e5b194e23f9ccfe 100644
--- a/enzevalos_iphone/SwiftUI/Inbox/InboxView.swift
+++ b/enzevalos_iphone/SwiftUI/Inbox/InboxView.swift
@@ -1,10 +1,22 @@
 //
-//  InboView.swift
+//  InboxView.swift
 //  enzevalos_iphone
 //
 //  Created by Oliver Wiese on 16.10.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI
diff --git a/enzevalos_iphone/SwiftUI/Inbox/MailListView.swift b/enzevalos_iphone/SwiftUI/Inbox/MailListView.swift
index 3c39a101dc602d3a30a9e5c211af2a0cbac60468..a5630a345a0b07af6450c6a568cd19ff456628c0 100644
--- a/enzevalos_iphone/SwiftUI/Inbox/MailListView.swift
+++ b/enzevalos_iphone/SwiftUI/Inbox/MailListView.swift
@@ -4,7 +4,19 @@
 //
 //  Created by Oliver Wiese on 16.10.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI
diff --git a/enzevalos_iphone/SwiftUI/Inbox/MailRowView.swift b/enzevalos_iphone/SwiftUI/Inbox/MailRowView.swift
index a73cb159f82a960d1543825b4eefd8b34d9cb55b..4d4c6936710b82da2880187db62b422d45b174af 100644
--- a/enzevalos_iphone/SwiftUI/Inbox/MailRowView.swift
+++ b/enzevalos_iphone/SwiftUI/Inbox/MailRowView.swift
@@ -4,7 +4,19 @@
 //
 //  Created by Oliver Wiese on 27.10.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI
diff --git a/enzevalos_iphone/SwiftUI/Read/Tabbed Views/SecurityBriefingView.swift b/enzevalos_iphone/SwiftUI/Read/Tabbed Views/SecurityBriefingView.swift
index 1ea78852bf1656a5d6d86d28818389572ffd8f32..0ad2f406c7523fff623fe6e1f9a461ad47e3ba30 100644
--- a/enzevalos_iphone/SwiftUI/Read/Tabbed Views/SecurityBriefingView.swift	
+++ b/enzevalos_iphone/SwiftUI/Read/Tabbed Views/SecurityBriefingView.swift	
@@ -4,7 +4,19 @@
 //
 //  Created by Oliver Wiese on 09.04.20.
 //  Modified by Chris Offner & Claire Bräuer in March 2021.
-//  Copyright © 2020 fu-berlin. All rights reserved.
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see https://www.gnu.org/licenses/.
 //
 
 import SwiftUI