Email Sent in two version text/html

[Blesta Addons]

fromwhat i have see , that blesta send emails with two versions, text and html one .

is possible to make blesta send only the HTML one in case HTML is enabled in mail settings?

Quote

--_=_swift_v4_1477057991580a1dc717fb2_=_
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

 

Quote

--_=_swift_v4_1477057991580a1dc717fb2_=_
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable