i am trying to send email in my site with my own font and i have uploaded my font to my site and i used font-face in my mail to use that. but it does not work and in the send mail there is no font-face. this is my mail:
<style>
    @font-face {
        font-family: 'bmitra';
        src: url(http://roozbehi.ir/Fonts/BMitra.eot?#iefix) format("embedded-opentype"), url(http://roozbehi.ir/Fonts/BMitra.woff) format("woff"), url(http://roozbehi.ir/Fonts/BMitra.ttf) format("truetype");
        font-weight: normal;
        font-style: normal
    }
    #MailContainer {
        width: 87%;
        height: auto;
        margin: 0 auto;
        border: 1px solid rgb(204, 214, 220);
        border-top: 5px solid rgb(46, 123, 175);
        padding: 4% 6%;
        color: #666;
        font-family: bmitra;
        letter-spacing: 0.5px;
        font-size: 13.8px;
        line-height: 16px;
        background-color: rgb(249, 251, 251);
        direction: rtl;
        font-weight: 300;
    }
</style>
<div id="MailContainer">
</div>
what should i do?