From 281a93b32d8900b3e26f8eae1c161a3135709f46 Mon Sep 17 00:00:00 2001 From: Rebecca Law Date: Tue, 17 May 2016 15:38:49 +0100 Subject: [PATCH] Update ses callback to interpret hard and soft bounces. If the notification has a status == sending then update the status otherwise do not update the status. In other words do not change the status more than once. --- app/clients/email/aws_ses.py | 12 +- app/dao/notifications_dao.py | 10 +- app/notifications/rest.py | 11 +- tests/app/clients/test_aws_ses.py | 16 +- tests/app/dao/test_notification_dao.py | 27 ++++ tests/app/notifications/test_rest.py | 198 +++++++++++++++++++------ 6 files changed, 212 insertions(+), 62 deletions(-) diff --git a/app/clients/email/aws_ses.py b/app/clients/email/aws_ses.py index afb34af57..b33eeed13 100644 --- a/app/clients/email/aws_ses.py +++ b/app/clients/email/aws_ses.py @@ -5,10 +5,16 @@ from app.clients import STATISTICS_DELIVERED, STATISTICS_FAILURE from app.clients.email import (EmailClientException, EmailClient) ses_response_map = { - 'Bounce': { - "message": 'Bounced', + 'Permanent': { + "message": 'Hard bounced', "success": False, - "notification_status": 'failed', + "notification_status": 'permanent-failure', + "notification_statistics_status": STATISTICS_FAILURE + }, + 'Temporary': { + "message": 'Soft bounced', + "success": False, + "notification_status": 'temporary-failure', "notification_statistics_status": STATISTICS_FAILURE }, 'Delivery': { diff --git a/app/dao/notifications_dao.py b/app/dao/notifications_dao.py index 27a35532a..43a8b015c 100644 --- a/app/dao/notifications_dao.py +++ b/app/dao/notifications_dao.py @@ -1,4 +1,4 @@ -from sqlalchemy import (desc, func, Integer) +from sqlalchemy import (desc, func, Integer, and_) from sqlalchemy.sql.expression import cast from datetime import ( @@ -188,11 +188,9 @@ def update_notification_status_by_id(notification_id, status, notification_stati def update_notification_status_by_reference(reference, status, notification_statistics_status): - count = db.session.query(Notification).filter_by( - reference=reference - ).update({ - Notification.status: status - }) + count = db.session.query(Notification).filter(Notification.reference == reference, + Notification.status == 'sending').update( + {Notification.status: status}) if count == 1: notification = Notification.query.filter_by( diff --git a/app/notifications/rest.py b/app/notifications/rest.py index 7d08251c3..8c5e509ae 100644 --- a/app/notifications/rest.py +++ b/app/notifications/rest.py @@ -58,6 +58,11 @@ def process_ses_response(): ), 400 notification_type = ses_message['notificationType'] + if notification_type == 'Bounce': + if ses_message['bounce']['bounceType'] == 'Permanent': + notification_type = ses_message['bounce']['bounceType'] # permanent or not + else: + notification_type = 'Temporary' try: aws_response_dict = get_aws_responses(notification_type) except KeyError: @@ -87,12 +92,14 @@ def process_ses_response(): notification_status, notification_statistics_status ) == 0: + message = "SES callback failed: notification either not found or already updated " \ + "from sending. Status {}".format(notification_status) current_app.logger.info( - "SES callback failed: notification not found. Status {}".format(notification_status) + message ) return jsonify( result="error", - message="SES callback failed: notification not found. Status {}".format(notification_status) + message=message ), 404 if not aws_response_dict['success']: diff --git a/tests/app/clients/test_aws_ses.py b/tests/app/clients/test_aws_ses.py index 4d6560b87..adfa1ef6f 100644 --- a/tests/app/clients/test_aws_ses.py +++ b/tests/app/clients/test_aws_ses.py @@ -11,10 +11,18 @@ def test_should_return_correct_details_for_delivery(): assert response_dict['success'] -def test_should_return_correct_details_for_bounced(): - response_dict = get_aws_responses('Bounce') - assert response_dict['message'] == 'Bounced' - assert response_dict['notification_status'] == 'failed' +def test_should_return_correct_details_for_hard_bounced(): + response_dict = get_aws_responses('Permanent') + assert response_dict['message'] == 'Hard bounced' + assert response_dict['notification_status'] == 'permanent-failure' + assert response_dict['notification_statistics_status'] == 'failure' + assert not response_dict['success'] + + +def test_should_return_correct_details_for_soft_bounced(): + response_dict = get_aws_responses('Temporary') + assert response_dict['message'] == 'Soft bounced' + assert response_dict['notification_status'] == 'temporary-failure' assert response_dict['notification_statistics_status'] == 'failure' assert not response_dict['success'] diff --git a/tests/app/dao/test_notification_dao.py b/tests/app/dao/test_notification_dao.py index 65ec9d7be..b7aba158d 100644 --- a/tests/app/dao/test_notification_dao.py +++ b/tests/app/dao/test_notification_dao.py @@ -84,6 +84,33 @@ def test_should_by_able_to_update_status_by_id(sample_notification): ).one().sms_failed == 0 +def test_should_not_update_status_one_notification_status_is_delivered(sample_email_template, ses_provider): + data = _notification_json(sample_email_template) + + notification = Notification(**data) + dao_create_notification( + notification, + sample_email_template.template_type, + ses_provider.identifier) + + assert Notification.query.get(notification.id).status == "sending" + update_notification_reference_by_id(notification.id, 'reference') + update_notification_status_by_reference('reference', 'delivered', 'delivered') + assert Notification.query.get(notification.id).status == 'delivered' + + update_notification_status_by_reference('reference', 'delivered', 'temporary-failure') + assert Notification.query.get(notification.id).status == 'delivered' + assert NotificationStatistics.query.filter_by( + service_id=sample_email_template.service.id + ).one().emails_delivered == 1 + assert NotificationStatistics.query.filter_by( + service_id=sample_email_template.service.id + ).one().emails_requested == 1 + assert NotificationStatistics.query.filter_by( + service_id=sample_email_template.service.id + ).one().emails_failed == 0 + + def test_should_be_able_to_record_statistics_failure_for_sms(sample_notification): assert Notification.query.get(sample_notification.id).status == 'sending' count = update_notification_status_by_id(sample_notification.id, 'delivered', 'failure') diff --git a/tests/app/notifications/test_rest.py b/tests/app/notifications/test_rest.py index 5e92c4cdf..d96881ea3 100644 --- a/tests/app/notifications/test_rest.py +++ b/tests/app/notifications/test_rest.py @@ -1163,9 +1163,10 @@ def test_firetext_callback_should_update_notification_status(notify_api, sample_ updated = get_notification_by_id(sample_notification.id) assert updated.status == 'delivered' assert get_notification_by_id(sample_notification.id).status == 'delivered' - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_delivered == 1 - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_requested == 1 - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_failed == 0 + stats = dao_get_notification_statistics_for_service(sample_notification.service_id)[0] + assert stats.sms_delivered == 1 + assert stats.sms_requested == 1 + assert stats.sms_failed == 0 def test_firetext_callback_should_update_notification_status_failed(notify_api, sample_notification): @@ -1188,9 +1189,10 @@ def test_firetext_callback_should_update_notification_status_failed(notify_api, sample_notification.id ) assert get_notification_by_id(sample_notification.id).status == 'failed' - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_delivered == 0 - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_requested == 1 - assert dao_get_notification_statistics_for_service(sample_notification.service_id)[0].sms_failed == 1 + stats = dao_get_notification_statistics_for_service(sample_notification.service_id)[0] + assert stats.sms_delivered == 0 + assert stats.sms_requested == 1 + assert stats.sms_failed == 1 def test_firetext_callback_should_update_notification_status_sent(notify_api, notify_db, notify_db_session): @@ -1214,9 +1216,10 @@ def test_firetext_callback_should_update_notification_status_sent(notify_api, no notification.id ) assert get_notification_by_id(notification.id).status == 'delivered' - assert dao_get_notification_statistics_for_service(notification.service_id)[0].sms_delivered == 1 - assert dao_get_notification_statistics_for_service(notification.service_id)[0].sms_requested == 1 - assert dao_get_notification_statistics_for_service(notification.service_id)[0].sms_failed == 0 + stats = dao_get_notification_statistics_for_service(notification.service_id)[0] + assert stats.sms_delivered == 1 + assert stats.sms_requested == 1 + assert stats.sms_failed == 0 def test_firetext_callback_should_update_multiple_notification_status_sent(notify_api, notify_db, notify_db_session): @@ -1247,9 +1250,10 @@ def test_firetext_callback_should_update_multiple_notification_status_sent(notif ), headers=[('Content-Type', 'application/x-www-form-urlencoded')]) - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].sms_delivered == 3 - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].sms_requested == 3 - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].sms_failed == 0 + stats = dao_get_notification_statistics_for_service(notification1.service_id)[0] + assert stats.sms_delivered == 3 + assert stats.sms_requested == 3 + assert stats.sms_failed == 0 def test_process_mmg_response_return_200_when_cid_is_send_sms_code(notify_api): @@ -1386,7 +1390,7 @@ def test_ses_callback_should_fail_if_notification_cannot_be_found(notify_db, not json_resp = json.loads(response.get_data(as_text=True)) assert response.status_code == 404 assert json_resp['result'] == 'error' - assert json_resp['message'] == 'SES callback failed: notification not found. Status delivered' + assert json_resp['message'] == 'SES callback failed: notification either not found or already updated from sending. Status delivered' # noqa def test_ses_callback_should_update_notification_status( @@ -1415,9 +1419,10 @@ def test_ses_callback_should_update_notification_status( assert json_resp['result'] == 'success' assert json_resp['message'] == 'SES callback succeeded' assert get_notification_by_id(notification.id).status == 'delivered' - assert dao_get_notification_statistics_for_service(notification.service_id)[0].emails_delivered == 1 - assert dao_get_notification_statistics_for_service(notification.service_id)[0].emails_requested == 1 - assert dao_get_notification_statistics_for_service(notification.service_id)[0].emails_failed == 0 + stats = dao_get_notification_statistics_for_service(notification.service_id)[0] + assert stats.emails_delivered == 1 + assert stats.emails_requested == 1 + assert stats.emails_failed == 0 def test_ses_callback_should_update_multiple_notification_status_sent( @@ -1469,9 +1474,127 @@ def test_ses_callback_should_update_multiple_notification_status_sent( ), headers=[('Content-Type', 'application/x-www-form-urlencoded')]) - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].emails_delivered == 3 - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].emails_requested == 3 - assert dao_get_notification_statistics_for_service(notification1.service_id)[0].emails_failed == 0 + stats = dao_get_notification_statistics_for_service(notification1.service_id)[0] + assert stats.emails_delivered == 3 + assert stats.emails_requested == 3 + assert stats.emails_failed == 0 + + +def test_ses_callback_should_update_record_statsd( + notify_api, + notify_db, + notify_db_session, + sample_email_template, + mocker): + with notify_api.test_request_context(): + with notify_api.test_client() as client: + mocker.patch('app.statsd_client.incr') + + notification = create_sample_notification( + notify_db, + notify_db_session, + template=sample_email_template, + reference='ref' + ) + + assert get_notification_by_id(notification.id).status == 'sending' + + client.post( + path='/notifications/email/ses', + data=ses_notification_callback(), + headers=[('Content-Type', 'text/plain; charset=UTF-8')] + ) + app.statsd_client.incr.assert_called_once_with("notifications.callback.ses.delivered") + + +def test_ses_callback_should_set_status_to_temporary_failure(notify_api, + notify_db, + notify_db_session, + sample_email_template): + with notify_api.test_request_context(): + with notify_api.test_client() as client: + notification = create_sample_notification( + notify_db, + notify_db_session, + template=sample_email_template, + reference='ref' + ) + + assert get_notification_by_id(notification.id).status == 'sending' + + response = client.post( + path='/notifications/email/ses', + data=ses_soft_bounce_callback(), + headers=[('Content-Type', 'text/plain; charset=UTF-8')] + ) + json_resp = json.loads(response.get_data(as_text=True)) + assert response.status_code == 200 + assert json_resp['result'] == 'success' + assert json_resp['message'] == 'SES callback succeeded' + assert get_notification_by_id(notification.id).status == 'temporary-failure' + stats = dao_get_notification_statistics_for_service(notification.service_id)[0] + assert stats.emails_delivered == 0 + assert stats.emails_requested == 1 + assert stats.emails_failed == 1 + + +def test_ses_callback_should_not_set_status_once_status_is_delivered(notify_api, + notify_db, + notify_db_session, + sample_email_template): + with notify_api.test_request_context(): + with notify_api.test_client() as client: + notification = create_sample_notification( + notify_db, + notify_db_session, + template=sample_email_template, + reference='ref', + status='delivered' + ) + + assert get_notification_by_id(notification.id).status == 'delivered' + + response = client.post( + path='/notifications/email/ses', + data=ses_soft_bounce_callback(), + headers=[('Content-Type', 'text/plain; charset=UTF-8')] + ) + json_resp = json.loads(response.get_data(as_text=True)) + assert response.status_code == 404 + assert json_resp['result'] == 'error' + assert json_resp['message'] == 'SES callback failed: notification either not found or already updated from sending. Status temporary-failure' # noqa + assert get_notification_by_id(notification.id).status == 'delivered' + + +def test_ses_callback_should_set_status_to_permanent_failure(notify_api, + notify_db, + notify_db_session, + sample_email_template): + with notify_api.test_request_context(): + with notify_api.test_client() as client: + notification = create_sample_notification( + notify_db, + notify_db_session, + template=sample_email_template, + reference='ref' + ) + + assert get_notification_by_id(notification.id).status == 'sending' + + response = client.post( + path='/notifications/email/ses', + data=ses_hard_bounce_callback(), + headers=[('Content-Type', 'text/plain; charset=UTF-8')] + ) + json_resp = json.loads(response.get_data(as_text=True)) + assert response.status_code == 200 + assert json_resp['result'] == 'success' + assert json_resp['message'] == 'SES callback succeeded' + assert get_notification_by_id(notification.id).status == 'permanent-failure' + stats = dao_get_notification_statistics_for_service(notification.service_id)[0] + assert stats.emails_delivered == 0 + assert stats.emails_requested == 1 + assert stats.emails_failed == 1 def test_should_handle_invite_email_callbacks(notify_api, notify_db, notify_db_session): @@ -1551,33 +1674,6 @@ def test_should_record_sms_request_in_statsd(notify_api, notify_db, notify_db_se app.statsd_client.incr.assert_called_once_with("notifications.api.sms") -def test_ses_callback_should_update_record_statsd( - notify_api, - notify_db, - notify_db_session, - sample_email_template, - mocker): - with notify_api.test_request_context(): - with notify_api.test_client() as client: - mocker.patch('app.statsd_client.incr') - - notification = create_sample_notification( - notify_db, - notify_db_session, - template=sample_email_template, - reference='ref' - ) - - assert get_notification_by_id(notification.id).status == 'sending' - - client.post( - path='/notifications/email/ses', - data=ses_notification_callback(), - headers=[('Content-Type', 'text/plain; charset=UTF-8')] - ) - app.statsd_client.incr.assert_called_once_with("notifications.callback.ses.delivered") - - def test_process_mmg_response_records_statsd(notify_api, sample_notification, mocker): with notify_api.test_client() as client: mocker.patch('app.statsd_client.incr') @@ -1630,4 +1726,12 @@ def ses_missing_notification_id_callback(): def ses_invalid_notification_type_callback(): - return b'{\n "Type" : "Notification",\n "TopicArn" : "arn:aws:sns:eu-west-1:123456789012:testing",\n "Message" : "{\\"notificationType\\":\\"Unknown\\",\\"mail\\":{\\"timestamp\\":\\"2016-03-14T12:35:25.909Z\\",\\"source\\":\\"test@test-domain.com\\",\\"sourceArn\\":\\"arn:aws:ses:eu-west-1:123456789012:identity/testing-notify\\",\\"sendingAccountId\\":\\"123456789012\\",\\"destination\\":[\\"testing@digital.cabinet-office.gov.uk\\"]},\\"delivery\\":{\\"timestamp\\":\\"2016-03-14T12:35:26.567Z\\",\\"processingTimeMillis\\":658,\\"recipients\\":[\\"testing@digital.cabinet-office.gov.uk\\"],\\"smtpResponse\\":\\"250 2.0.0 OK 1457958926 uo5si26480932wjc.221 - gsmtp\\",\\"reportingMTA\\":\\"a6-238.smtp-out.eu-west-1.amazonses.com\\"}}",\n "Timestamp" : "2016-03-14T12:35:26.665Z",\n "SignatureVersion" : "1",\n "Signature" : "X8d7eTAOZ6wlnrdVVPYanrAlsX0SMPfOzhoTEBnQqYkrNWTqQY91C0f3bxtPdUhUtOowyPAOkTQ4KnZuzphfhVb2p1MyVYMxNKcBFB05/qaCX99+92fjw4x9LeUOwyGwMv5F0Vkfi5qZCcEw69uVrhYLVSTFTrzi/yCtru+yFULMQ6UhbY09GwiP6hjxZMVr8aROQy5lLHglqQzOuSZ4KeD85JjifHdKzlx8jjQ+uj+FLzHXPMAPmPU1JK9kpoHZ1oPshAFgPDpphJe+HwcJ8ezmk+3AEUr3wWli3xF+49y8Z2anASSVp6YI2YP95UT8Rlh3qT3T+V9V8rbSVislxA==",\n "SigningCertURL" : "https://sns.eu-west-1.amazonaws.com/SimpleNotificationService-bb750dd426d95ee9390147a5624348ee.pem",\n "UnsubscribeURL" : "https://sns.eu-west-1.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:eu-west-1:302763885840:preview-emails:d6aad3ef-83d6-4cf3-a470-54e2e75916da"\n}' # noqa + return b'{\n "Type" : "Notification",\n "MessageId" : "ref",\n "TopicArn" : "arn:aws:sns:eu-west-1:123456789012:testing",\n "Message" : "{\\"notificationType\\":\\"Unknown\\",\\"mail\\":{\\"timestamp\\":\\"2016-03-14T12:35:25.909Z\\",\\"source\\":\\"test@test-domain.com\\",\\"sourceArn\\":\\"arn:aws:ses:eu-west-1:123456789012:identity/testing-notify\\",\\"sendingAccountId\\":\\"123456789012\\",\\"destination\\":[\\"testing@digital.cabinet-office.gov.uk\\"]},\\"delivery\\":{\\"timestamp\\":\\"2016-03-14T12:35:26.567Z\\",\\"processingTimeMillis\\":658,\\"recipients\\":[\\"testing@digital.cabinet-office.gov.uk\\"],\\"smtpResponse\\":\\"250 2.0.0 OK 1457958926 uo5si26480932wjc.221 - gsmtp\\",\\"reportingMTA\\":\\"a6-238.smtp-out.eu-west-1.amazonses.com\\"}}",\n "Timestamp" : "2016-03-14T12:35:26.665Z",\n "SignatureVersion" : "1",\n "Signature" : "X8d7eTAOZ6wlnrdVVPYanrAlsX0SMPfOzhoTEBnQqYkrNWTqQY91C0f3bxtPdUhUtOowyPAOkTQ4KnZuzphfhVb2p1MyVYMxNKcBFB05/qaCX99+92fjw4x9LeUOwyGwMv5F0Vkfi5qZCcEw69uVrhYLVSTFTrzi/yCtru+yFULMQ6UhbY09GwiP6hjxZMVr8aROQy5lLHglqQzOuSZ4KeD85JjifHdKzlx8jjQ+uj+FLzHXPMAPmPU1JK9kpoHZ1oPshAFgPDpphJe+HwcJ8ezmk+3AEUr3wWli3xF+49y8Z2anASSVp6YI2YP95UT8Rlh3qT3T+V9V8rbSVislxA==",\n "SigningCertURL" : "https://sns.eu-west-1.amazonaws.com/SimpleNotificationService-bb750dd426d95ee9390147a5624348ee.pem",\n "UnsubscribeURL" : "https://sns.eu-west-1.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:eu-west-1:302763885840:preview-emails:d6aad3ef-83d6-4cf3-a470-54e2e75916da"\n}' # noqa + + +def ses_hard_bounce_callback(): + return b'{\n "Type" : "Notification",\n "MessageId" : "ref",\n "TopicArn" : "arn:aws:sns:eu-west-1:123456789012:testing",\n "Message" : "{\\"notificationType\\":\\"Bounce\\",\\"bounce\\":{\\"bounceType\\":\\"Permanent\\",\\"bounceSubType\\":\\"General\\"}, \\"mail\\":{\\"messageId\\":\\"ref\\",\\"timestamp\\":\\"2016-03-14T12:35:25.909Z\\",\\"source\\":\\"test@test-domain.com\\",\\"sourceArn\\":\\"arn:aws:ses:eu-west-1:123456789012:identity/testing-notify\\",\\"sendingAccountId\\":\\"123456789012\\",\\"destination\\":[\\"testing@digital.cabinet-office.gov.uk\\"]},\\"delivery\\":{\\"timestamp\\":\\"2016-03-14T12:35:26.567Z\\",\\"processingTimeMillis\\":658,\\"recipients\\":[\\"testing@digital.cabinet-office.gov.uk\\"],\\"smtpResponse\\":\\"250 2.0.0 OK 1457958926 uo5si26480932wjc.221 - gsmtp\\",\\"reportingMTA\\":\\"a6-238.smtp-out.eu-west-1.amazonses.com\\"}}",\n "Timestamp" : "2016-03-14T12:35:26.665Z",\n "SignatureVersion" : "1",\n "Signature" : "X8d7eTAOZ6wlnrdVVPYanrAlsX0SMPfOzhoTEBnQqYkrNWTqQY91C0f3bxtPdUhUtOowyPAOkTQ4KnZuzphfhVb2p1MyVYMxNKcBFB05/qaCX99+92fjw4x9LeUOwyGwMv5F0Vkfi5qZCcEw69uVrhYLVSTFTrzi/yCtru+yFULMQ6UhbY09GwiP6hjxZMVr8aROQy5lLHglqQzOuSZ4KeD85JjifHdKzlx8jjQ+uj+FLzHXPMAPmPU1JK9kpoHZ1oPshAFgPDpphJe+HwcJ8ezmk+3AEUr3wWli3xF+49y8Z2anASSVp6YI2YP95UT8Rlh3qT3T+V9V8rbSVislxA==",\n "SigningCertURL" : "https://sns.eu-west-1.amazonaws.com/SimpleNotificationService-bb750dd426d95ee9390147a5624348ee.pem",\n "UnsubscribeURL" : "https://sns.eu-west-1.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:eu-west-1:302763885840:preview-emails:d6aad3ef-83d6-4cf3-a470-54e2e75916da"\n}' # noqa + + +def ses_soft_bounce_callback(): + return b'{\n "Type" : "Notification",\n "MessageId" : "ref",\n "TopicArn" : "arn:aws:sns:eu-west-1:123456789012:testing",\n "Message" : "{\\"notificationType\\":\\"Bounce\\",\\"bounce\\":{\\"bounceType\\":\\"Undetermined\\",\\"bounceSubType\\":\\"General\\"}, \\"mail\\":{\\"messageId\\":\\"ref\\",\\"timestamp\\":\\"2016-03-14T12:35:25.909Z\\",\\"source\\":\\"test@test-domain.com\\",\\"sourceArn\\":\\"arn:aws:ses:eu-west-1:123456789012:identity/testing-notify\\",\\"sendingAccountId\\":\\"123456789012\\",\\"destination\\":[\\"testing@digital.cabinet-office.gov.uk\\"]},\\"delivery\\":{\\"timestamp\\":\\"2016-03-14T12:35:26.567Z\\",\\"processingTimeMillis\\":658,\\"recipients\\":[\\"testing@digital.cabinet-office.gov.uk\\"],\\"smtpResponse\\":\\"250 2.0.0 OK 1457958926 uo5si26480932wjc.221 - gsmtp\\",\\"reportingMTA\\":\\"a6-238.smtp-out.eu-west-1.amazonses.com\\"}}",\n "Timestamp" : "2016-03-14T12:35:26.665Z",\n "SignatureVersion" : "1",\n "Signature" : "X8d7eTAOZ6wlnrdVVPYanrAlsX0SMPfOzhoTEBnQqYkrNWTqQY91C0f3bxtPdUhUtOowyPAOkTQ4KnZuzphfhVb2p1MyVYMxNKcBFB05/qaCX99+92fjw4x9LeUOwyGwMv5F0Vkfi5qZCcEw69uVrhYLVSTFTrzi/yCtru+yFULMQ6UhbY09GwiP6hjxZMVr8aROQy5lLHglqQzOuSZ4KeD85JjifHdKzlx8jjQ+uj+FLzHXPMAPmPU1JK9kpoHZ1oPshAFgPDpphJe+HwcJ8ezmk+3AEUr3wWli3xF+49y8Z2anASSVp6YI2YP95UT8Rlh3qT3T+V9V8rbSVislxA==",\n "SigningCertURL" : "https://sns.eu-west-1.amazonaws.com/SimpleNotificationService-bb750dd426d95ee9390147a5624348ee.pem",\n "UnsubscribeURL" : "https://sns.eu-west-1.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:eu-west-1:302763885840:preview-emails:d6aad3ef-83d6-4cf3-a470-54e2e75916da"\n}' # noqa