I am using Mailgun API based extension in Expression engine CMS When i disable the Mail-gun its sending perfect html mail but when I enable Mailgun its sending Email like in this manner:
This is a multi-part message in MIME format.
Your email application may not support this format.
--B_ALT_565e9f7740811
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
HELLO this is a message
--B_ALT_565e9f7740811
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
<b>HELLO</b> this is a message
--B_ALT_565e9f7740811--
I type only once "HELLO this is a message" in this manner:
<b>HELLO</b> this is a message
But its showing two times in the email please resolve this issue.