Optional email address

  • I have a contact form which is sent to up to three recipients with email addresses which are defined as:
    [email* address-1]
    [email* address-2]
    [email address-3]

    Since address-3 is optional, I cannot code the email header as:
    To: [address-3]

    If I code it as To: [address-1],[address-2],[address-3]
    a configuration error is detected, but the email is sent correctly to address-1 and address-2.

    Is there any way of achieving the same result without Contact Form 7 flagging a configuation error?

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