diff --git a/ansible/roles/win_transfer/tasks/mount.yml b/ansible/roles/win_transfer/tasks/mount.yml
index e803d9a..a2319df 100644
--- a/ansible/roles/win_transfer/tasks/mount.yml
+++ b/ansible/roles/win_transfer/tasks/mount.yml
@@ -15,6 +15,13 @@
         path: "{{ mft_directory }}"
         state: directory
 
+    - name: Add entry to space-domains.txt
+      lineinfile:
+        path: "{{ space_domain_path }}"
+        state: present
+        regexp: "^{{ os_project }}"
+        line: "{{ os_project }}-{{ win_project }}"
+
     - name: Copy smb-credential template to os-transfer
       template:
         dest: "{{ credentials_path }}"
diff --git a/ansible/roles/win_transfer/tasks/unmount.yml b/ansible/roles/win_transfer/tasks/unmount.yml
index 2514948..3b9a9d3 100644
--- a/ansible/roles/win_transfer/tasks/unmount.yml
+++ b/ansible/roles/win_transfer/tasks/unmount.yml
@@ -15,6 +15,13 @@
         path: "{{ mft_directory }}"
         state: absent
 
+    - name: Remove entry from space-domains.txt
+      lineinfile:
+        path: "{{ space_domain_path }}"
+        state: absent
+        regexp: "^{{ os_project }}"
+        line: "{{ os_project }}-{{ win_project }}"
+
     - name: Remove smb-credential template
       file:
         path: "{{ credentials_path }}"
diff --git a/ansible/roles/win_transfer/vars/main.yml b/ansible/roles/win_transfer/vars/main.yml
index 10e572c..4fa4fa0 100644
--- a/ansible/roles/win_transfer/vars/main.yml
+++ b/ansible/roles/win_transfer/vars/main.yml
@@ -1,3 +1,4 @@
 mount_directory: /mnt/windows/{{ os_project }}-{{ win_project }}
 mft_directory: /mnt/os-transfer/windows-mft/{{ os_project }}-{{ win_project }}
+space_domain_path: /root/scripts/space-domains.txt
 credentials_path: /root/windows-envs/.{{ os_project }}-{{ win_project }}-smbcredentials
\ No newline at end of file