Cloud Custodian/cloud-custodian

Hello, it seems I'm having trouble with this variable {account_id}. I'm running it on docker with version 0.8.46.0. Here is my policy, mailer.yml and output. I did a dryrun where it runs custodian and the mailer. Any ideas why I'm getting this error? botocore.exceptions.ClientError: An error occurred (InvalidAddress) when calling the ReceiveMessage operation: The address https://queue.amazonaws.com/ is not valid for this endpoint.

policies:
  - name: ec2-tag-compliance-notify-only
    resource: ec2
    description: |
       Scan EC2 resources that do not meet tag compliance policies.
    filters:
      - type: value
        key: "State.Name"
        op: ni
        value: ['terminated']
      - or: *tag-compliance-filters
    actions:
      - type: notify
        template: general_template.html
        priority_header: 2
        subject: "Enterprise Tagging - {{ policy['resource'] }} Compliance Report! [{{ account }} - {{ region }}] ***TEST EMAIL***"
        violation_desc: "is not tag compliant. Please see Cheat Sheet Link below and fix your tags!"
        action_desc: |
          resource out of compliance. Informational only. No marking, stopping or deleting of resources.
        to:
          - test@example.com
        transport:
          type: sqs
          queue: https://sqs.us-east-1.amazonaws.com/{account_id}/cloud-custodian-mailer

mailer.yml

queue_url: https://sqs.us-east-1.amazonaws.com/{account_id}/cloud-custodian-mailer
role: arn:aws:iam::{account_id}:role/cloud-custodian
from_address: test@example.com

Output:

2020-05-27 22:47:17,807: custodian.policy:INFO policy:ec2-tag-compliance-notify-only resource:ec2 region:ap-northeast-1 count:349 time:4.05
2020-05-27 22:47:19,742: custodian.policy:INFO policy:ec2-tag-compliance-notify-only resource:ec2 region:ap-southeast-2 count:31 time:1.84
2020-05-27 22:47:24,625: custodian.policy:INFO policy:ec2-tag-compliance-notify-only resource:ec2 region:eu-central-1 count:64 time:4.86
2020-05-27 22:47:30,105: custodian.policy:INFO policy:ec2-tag-compliance-notify-only resource:ec2 region:us-east-1 count:167 time:5.45
2020-05-27 22:47:34,732: custodian.policy:INFO policy:ec2-tag-compliance-notify-only resource:ec2 region:us-east-2 count:187 time:4.57
2020-05-27 22:47:35,449 - custodian-mailer - INFO - Downloading messages from the SQS queue.
Traceback (most recent call last):
  File "/usr/local/bin/c7n-mailer", line 11, in <module>
    load_entry_point('c7n-mailer==0.5.7', 'console_scripts', 'c7n-mailer')()
  File "/usr/local/lib/python3.8/site-packages/c7n_mailer-0.5.7-py3.8.egg/c7n_mailer/cli.py", line 253, in main
    processor.run()
  File "/usr/local/lib/python3.8/site-packages/c7n_mailer-0.5.7-py3.8.egg/c7n_mailer/sqs_queue_processor.py", line 117, in run
    for sqs_message in sqs_messages:
  File "/usr/local/lib/python3.8/site-packages/c7n_mailer-0.5.7-py3.8.egg/c7n_mailer/sqs_queue_processor.py", line 54, in __next__
    response = self.aws_sqs.receive_message(
  File "/usr/local/lib/python3.8/site-packages/botocore/client.py", line 316, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File "/usr/local/lib/python3.8/site-packages/botocore/client.py", line 635, in _make_api_call
    raise error_class(parsed_response, operation_name)
botocore.exceptions.ClientError: An error occurred (InvalidAddress) when calling the ReceiveMessage operation: The address https://queue.amazonaws.com/ is not valid for this endpoint.
make: *** [cust-dryrun-report-prod] Error 1

When I hardcode the account number it works.