diff --git a/requirements-app.txt b/requirements-app.txt
index 2179e0c71..60a97a9ce 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -24,7 +24,7 @@ Shapely==1.7.1
 awscli-cwlogs>=1.4,<1.5
 itsdangerous==1.1.0
 
-git+https://github.com/alphagov/notifications-utils.git@41.2.0#egg=notifications-utils==41.2.0
+git+https://github.com/alphagov/notifications-utils.git@41.3.0#egg=notifications-utils==41.3.0
 git+https://github.com/alphagov/govuk-frontend-jinja.git@v0.5.1-alpha#egg=govuk-frontend-jinja==0.5.1-alpha
 
 # gds-metrics requires prometheseus 0.2.0, override that requirement as later versions bring significant performance gains
diff --git a/requirements.txt b/requirements.txt
index af41b7db0..74c5c8f02 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ Shapely==1.7.1
 awscli-cwlogs>=1.4,<1.5
 itsdangerous==1.1.0
 
-git+https://github.com/alphagov/notifications-utils.git@41.2.0#egg=notifications-utils==41.2.0
+git+https://github.com/alphagov/notifications-utils.git@41.3.0#egg=notifications-utils==41.3.0
 git+https://github.com/alphagov/govuk-frontend-jinja.git@v0.5.1-alpha#egg=govuk-frontend-jinja==0.5.1-alpha
 
 # gds-metrics requires prometheseus 0.2.0, override that requirement as later versions bring significant performance gains
@@ -34,10 +34,10 @@ prometheus-client==0.8.0
 gds-metrics==0.2.4
 
 ## The following requirements were added by pip freeze:
-awscli==1.18.133
+awscli==1.18.134
 bleach==3.1.4
 boto3==1.10.38
-botocore==1.17.56
+botocore==1.17.57
 cachetools==4.1.0
 certifi==2020.6.20
 chardet==3.0.4
diff --git a/tests/app/main/views/test_send.py b/tests/app/main/views/test_send.py
index add7d73ce..c0f77f584 100644
--- a/tests/app/main/views/test_send.py
+++ b/tests/app/main/views/test_send.py
@@ -702,6 +702,47 @@ def test_upload_csv_file_with_international_letters_permission_shows_appropriate
     ]
 
 
+@pytest.mark.parametrize('row_index, expected_postage', (
+    (2, 'Postage: second class'),
+    (3, 'Postage: international'),
+))
+def test_upload_csv_file_with_international_letters_permission_shows_correct_postage(
+    client_request,
+    service_one,
+    mocker,
+    mock_get_service_letter_template,
+    mock_s3_upload,
+    mock_get_users_by_service,
+    mock_get_service_statistics,
+    mock_get_job_doesnt_exist,
+    mock_get_jobs,
+    fake_uuid,
+    row_index,
+    expected_postage,
+):
+    service_one['permissions'] += ['letter', 'international_letters']
+    mocker.patch('app.main.views.send.get_page_count_for_letter', return_value=9)
+    mocker.patch(
+        'app.main.views.send.s3download',
+        return_value='''
+            address line 1,     address line 3,  address line 6,
+            Firstname Lastname, 123 Example St., SW1A 1AA
+            Firstname Lastname, 123 Example St., France
+        '''
+    )
+
+    page = client_request.get(
+        'main.check_messages',
+        service_id=SERVICE_ONE_ID,
+        template_id=fake_uuid,
+        upload_id=fake_uuid,
+        row_index=row_index,
+        _test_page_title=False,
+    )
+
+    assert normalize_spaces(page.select_one('.letter-postage').text) == expected_postage
+
+
 @pytest.mark.parametrize('file_contents, expected_error,', [
     (
         """
@@ -2282,6 +2323,43 @@ def test_send_one_off_letter_copes_with_placeholder_from_address_block(
     assert normalize_spaces(previous_page.select_one('form label').text) == 'Address'
 
 
+@pytest.mark.parametrize('last_line, expected_postage', (
+    ('France', 'Postage: international'),
+    ('SW1A 1AA', 'Postage: second class'),
+))
+def test_send_one_off_letter_shows_international_postage(
+    client_request,
+    service_one,
+    mocker,
+    fake_uuid,
+    mock_get_service_letter_template_with_placeholders,
+    mock_template_preview,
+    no_letter_contact_blocks,
+    last_line,
+    expected_postage,
+):
+    service_one['permissions'] += ['letter', 'international_letters']
+
+    with client_request.session_transaction() as session:
+        session['recipient'] = None
+        session['placeholders'] = {}
+
+    page = client_request.post(
+        'main.send_one_off_letter_address',
+        service_id=SERVICE_ONE_ID,
+        template_id=fake_uuid,
+        _data={'address': f'''
+            123 Example Street
+            Paris
+            {last_line}
+        '''},
+        _follow_redirects=True,
+    )
+
+    assert normalize_spaces(page.select_one('form label').text) == 'name'
+    assert normalize_spaces(page.select_one('.letter-postage').text) == expected_postage
+
+
 def test_send_test_sms_message_puts_submitted_data_in_session(
     client_request,
     service_one,