File upload fields and Attachments emailed as url links

Would you please pare down the form to the minimal required to reproduce the bug and re-post the yaml?

Yeah, sorry. That's overkill.

I've created a simple form with two fields: an email address and a file upload. In the email handler for my form, I have checked the file upload field to be included in the submission values. "Include files as attachments" is enabled. New config export is below.

The email gets sent, but the email still contains links to the files rather than the files as an attachment. I am using the https://www.drupal.org/project/mailsystem → module. I thought that my issue may have to do with the integration of Webform and the Mail System module or Sendgrid Integration, but I disabled both of those on my local and still get the link.

I wouldn't be surprised if it's user error, I just don't know what I'm doing wrong.

uuid: d7454793-f917-4567-b2ce-cd92aa2a5764
langcode: en
status: open
dependencies:
  enforced:
    module:
      - webform
_core:
  default_config_hash: CJr5U2B4if_Ff1SZfnNp_csPKwXIynmbUlBC-SmSOAE
weight: 0
open: null
close: null
uid: null
template: false
archive: false
id: contact
title: Contact
description: 'Basic email contact webform.'
category: ''
elements: |-
  email:
    '#title': 'Your Email'
    '#type': email
    '#required': true
    '#default_value': '[current-user:mail]'
  pdf_example:
    '#type': webform_document_file
    '#title': 'PDF Example'
  actions:
    '#type': webform_actions
    '#title': 'Submit button(s)'
    '#submit__label': 'Send message'
css: ''
javascript: ''
settings:
  ajax: false
  ajax_scroll_top: form
  ajax_progress_type: ''
  ajax_effect: ''
  ajax_speed: null
  page: true
  page_submit_path: ''
  page_confirm_path: ''
  page_theme_name: ''
  form_title: source_entity_webform
  form_submit_once: false
  form_open_message: ''
  form_close_message: ''
  form_exception_message: ''
  form_previous_submissions: true
  form_confidential: false
  form_confidential_message: ''
  form_disable_remote_addr: false
  form_convert_anonymous: false
  form_prepopulate: false
  form_prepopulate_source_entity: false
  form_prepopulate_source_entity_required: false
  form_prepopulate_source_entity_type: ''
  form_unsaved: false
  form_disable_back: false
  form_submit_back: false
  form_disable_autocomplete: false
  form_novalidate: false
  form_disable_inline_errors: false
  form_required: false
  form_autofocus: false
  form_details_toggle: false
  form_reset: false
  form_access_denied: default
  form_access_denied_title: ''
  form_access_denied_message: ''
  form_access_denied_attributes: {  }
  form_file_limit: ''
  form_attributes: {  }
  form_method: ''
  form_action: ''
  share: false
  share_node: false
  share_theme_name: ''
  share_title: true
  share_page_body_attributes: {  }
  submission_label: ''
  submission_exception_message: ''
  submission_locked_message: ''
  submission_log: false
  submission_excluded_elements: {  }
  submission_exclude_empty: false
  submission_exclude_empty_checkbox: false
  submission_views: {  }
  submission_views_replace: {  }
  submission_user_columns: {  }
  submission_user_duplicate: false
  submission_access_denied: default
  submission_access_denied_title: ''
  submission_access_denied_message: ''
  submission_access_denied_attributes: {  }
  previous_submission_message: ''
  previous_submissions_message: ''
  autofill: false
  autofill_message: ''
  autofill_excluded_elements: {  }
  wizard_progress_bar: true
  wizard_progress_pages: false
  wizard_progress_percentage: false
  wizard_progress_link: false
  wizard_progress_states: false
  wizard_start_label: ''
  wizard_preview_link: false
  wizard_confirmation: true
  wizard_confirmation_label: ''
  wizard_auto_forward: true
  wizard_auto_forward_hide_next_button: false
  wizard_keyboard: true
  wizard_track: ''
  wizard_prev_button_label: ''
  wizard_next_button_label: ''
  wizard_toggle: false
  wizard_toggle_show_label: ''
  wizard_toggle_hide_label: ''
  preview: 0
  preview_label: ''
  preview_title: ''
  preview_message: ''
  preview_attributes: {  }
  preview_excluded_elements: {  }
  preview_exclude_empty: true
  preview_exclude_empty_checkbox: false
  draft: none
  draft_multiple: false
  draft_auto_save: false
  draft_saved_message: ''
  draft_loaded_message: ''
  draft_pending_single_message: ''
  draft_pending_multiple_message: ''
  confirmation_type: url_message
  confirmation_url: '<front>'
  confirmation_title: ''
  confirmation_message: 'Your message has been sent.'
  confirmation_attributes: {  }
  confirmation_back: true
  confirmation_back_label: ''
  confirmation_back_attributes: {  }
  confirmation_exclude_query: false
  confirmation_exclude_token: false
  confirmation_update: false
  limit_total: null
  limit_total_interval: null
  limit_total_message: ''
  limit_total_unique: false
  limit_user: null
  limit_user_interval: null
  limit_user_message: ''
  limit_user_unique: false
  entity_limit_total: null
  entity_limit_total_interval: null
  entity_limit_user: null
  entity_limit_user_interval: null
  purge: none
  purge_days: null
  results_disabled: false
  results_disabled_ignore: false
  results_customize: false
  token_view: false
  token_update: false
  token_delete: false
  serial_disabled: false
access:
  create:
    roles:
      - anonymous
      - authenticated
    users: {  }
    permissions: {  }
  view_any:
    roles: {  }
    users: {  }
    permissions: {  }
  update_any:
    roles: {  }
    users: {  }
    permissions: {  }
  delete_any:
    roles: {  }
    users: {  }
    permissions: {  }
  purge_any:
    roles: {  }
    users: {  }
    permissions: {  }
  view_own:
    roles: {  }
    users: {  }
    permissions: {  }
  update_own:
    roles: {  }
    users: {  }
    permissions: {  }
  delete_own:
    roles: {  }
    users: {  }
    permissions: {  }
  administer:
    roles: {  }
    users: {  }
    permissions: {  }
  test:
    roles: {  }
    users: {  }
    permissions: {  }
  configuration:
    roles: {  }
    users: {  }
    permissions: {  }
handlers:
  email_notification:
    id: email
    handler_id: email_notification
    label: 'Email notification'
    notes: ''
    status: true
    conditions: {  }
    weight: 2
    settings:
      states:
        - completed
      to_mail: _default
      to_options: {  }
      bcc_mail: ''
      bcc_options: {  }
      cc_mail: ''
      cc_options: {  }
      from_mail: '[webform_submission:values:email:raw]'
      from_options: {  }
      from_name: _default
      reply_to: ''
      return_path: ''
      sender_mail: ''
      sender_name: ''
      subject: _default
      body: _default
      excluded_elements: {  }
      ignore_access: false
      exclude_empty: true
      exclude_empty_checkbox: false
      exclude_attachments: false
      html: true
      attachments: true
      twig: false
      theme_name: ''
      parameters: {  }
      debug: false
variants: {  }

This is working as expected. My configuration for the mail_system module was incorrect.

😄