FAILED tests/test_send_one_task.py::TestGuardPaths::test_paused_campaign_short_circuits
FAILED tests/test_send_one_task.py::TestGuardPaths::test_already_finalized_recipient_no_resend
FAILED tests/test_send_one_task.py::TestGuardPaths::test_suppression_hit_at_send_time
FAILED tests/test_send_one_task.py::TestGuardPaths::test_unauthorized_assigned_account_skips
FAILED tests/test_send_one_task.py::TestGuardPaths::test_missing_template_perm_fails
FAILED tests/test_send_one_task.py::TestGuardPaths::test_missing_oauth_token_perm_fails
FAILED tests/test_send_one_task.py::TestSuccessPath::test_sent_end_to_end_with_mime_and_headers
FAILED tests/test_send_one_task.py::TestSuccessPath::test_pdf_attachment_generated_and_sent
FAILED tests/test_send_one_task.py::TestSuccessPath::test_plain_message_type_omits_html_part
FAILED tests/test_send_one_task.py::TestRetryAndBackoff::test_temporary_error_retries_with_exponential_backoff
FAILED tests/test_send_one_task.py::TestRetryAndBackoff::test_retry_loop_then_dead_letter_after_max_attempts
FAILED tests/test_send_one_task.py::TestRetryAndBackoff::test_generic_connection_error_is_temporary
FAILED tests/test_send_one_task.py::TestRetryAndBackoff::test_provider_refusal_without_exception_retries
FAILED tests/test_send_one_task.py::TestPermanentFailures::test_permanent_403_perm_fails_no_retry
FAILED tests/test_send_one_task.py::TestPermanentFailures::test_auth_failure_expires_account_and_pauses_campaign
FAILED tests/test_send_one_task.py::TestPermanentFailures::test_quota_error_retries_and_marks_account_cooldown
FAILED tests/test_send_one_task.py::TestThrottling::test_daily_limit_reached_pauses_campaign
FAILED tests/test_send_one_task.py::TestThrottling::test_account_cooldown_reschedules
FAILED tests/test_send_one_task.py::TestThrottling::test_per_account_rate_window_reschedules