Swoosh.Adapter.deliver

You're seeing just the callback deliver, go back to Swoosh.Adapter module for more information.
Link to this callback

deliver(%Swoosh.Email{}, config)

View Source

Specs

deliver(
  %Swoosh.Email{
    assigns: term(),
    attachments: term(),
    bcc: term(),
    cc: term(),
    from: term(),
    headers: term(),
    html_body: term(),
    private: term(),
    provider_options: term(),
    reply_to: term(),
    subject: term(),
    text_body: term(),
    to: term()
  },
  config()
) :: {:ok, term()} | {:error, term()}

Delivers an email with the given config.