Validating a struct field which is a list

[jfrense]

I am having trouble using vex to validate a field in a struct that consists of a list of values.

For example If I have the following struct:

user = %{emails_list: ["correct@email.com","incorrect@email"]}

and then I use vex.valid? to validate the emails:

 Vex.valid?(user,
    emails_list: [
      presence: [message: "can't be empty"],
      format: [
        with: ~r/\S+@\S+\.\S+/,
        allow_nil: false,
        allow_blank: false,
        string: true,
        message: "can't be empty"
      ]
    ]
  )

I am getting True back even though one of the emails in the list is invalid. To verify I tested it the values without the list and it is returning the correct validation result.

Is it possible to validate a struct with a list as one of its fields? Or do I have to write a validator with a custom function to map over each value in the list to validate it?