Thanks very much for the quick reply abolabo!
Unfortunately, I must be doing something wrong because I'm just getting this in the HTML
<input type="text" name="email" id="guestFrm_email" value="" placeholder="" class="form-control " />
<span class="input-group-addon"><span class="required">*</span></span>
Instead of
<input type="text" name="email" id="guestFrm_email" autocorrect="off" autocapitalize="off" value="" placeholder="" class="form-control " />
<span class="input-group-addon"><span class="required">*</span></span>