TYPO3 Core

As mentioned in https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/10.0/Feature-80420-AllowMultipleRecipientsInEmailFinisher.html and https://docs.typo3.org/c/typo3/cms-form/12.4/en-us/E/Finishers/Index.html it should be possible to send mails via form-extension but only the first gets an email

renderingOptions:
  submitButtonLabel: Absenden
identifier: simplecontactform
label: Simplecontactform
type: Form
prototypeName: standard
finishers:
  -
    options:
      subject: 'Your message: {subject}'
      recipients:
        first@example.org: First Recipient
        second@example.org: SecondRecipient
      senderAddress: '{email}'
      senderName: '{name}'
      attachUploads: true
      translation:
        language: ''
      useFluidEmail: true
      title: 'Confirmation of your message'
      addHtmlPart: true
    identifier: EmailToReceiver
renderables:
  -
    renderingOptions:
      previousButtonLabel: 'Vorherige Seite'
      nextButtonLabel: 'Nächster Schritt'
    identifier: page-1
    label: 'Contact Form'
    type: Page
    renderables:
      -
        defaultValue: ''
        identifier: name
        label: Name
        type: Text
        properties:
          fluidAdditionalAttributes:
            placeholder: Name
      -
        defaultValue: ''
        identifier: subject
        label: Subject
        type: Text
        properties:
          fluidAdditionalAttributes:
            placeholder: Subject
      -
        defaultValue: ''
        identifier: email
        label: Email
        type: Text
        properties:
          fluidAdditionalAttributes:
            placeholder: 'Email address'
        validators:
          -
            identifier: EmailAddress
      -
        defaultValue: ''
        identifier: message
        label: Message
        type: Textarea
        properties:
          fluidAdditionalAttributes:
            placeholder: ''
  -
    renderingOptions:
      previousButtonLabel: 'Vorherige Seite'
      nextButtonLabel: 'Nächster Schritt'
    identifier: summarypage
    label: 'Summary page'
    type: SummaryPage