# Method MIME.generate_boundary()

Method generate_boundary

  ``string` generate_boundary()`

Description

  This function will create a string that can be used as a separator string for multipart messages. If a boundary prefix has been set using MIME.set_boundary_prefix(), the generated string will be prefixed with the boundary prefix.

  The generated string is guaranteed not to appear in `base64`, `quoted-printable`, or `x-uue` encoded data. It is also unlikely to appear in normal text. This function is used by the cast method of the `Message` class if no boundary string is specified.

See also

  MIME.set_boundary_prefix()