gmail & celcom email sms

Does anyone know if it's possible to email sms to a celcom number from Gmail? Cause I'm getting a failure notification email when I tried.

From the email, I'm gathering that gmail is sending emails as multipart contents

Subject: xxxxx
Mime-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_Part_909_4480553.1121765928693"

------=_Part_909_4480553.1121765928693
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline



------=_Part_909_4480553.1121765928693
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

While the Celcom sms email server is anticipating text/plain content.

(Email-SMS) Please check the following:
1. Typing error on Celcom GSM phone number.
2. The content-type of the mail must be text/plain *only*.
3. The mail is excessively long.

Does anyone know if I can get gmail to send mails as text/plain?