all posts and emails sent as plain text

I picked a stunning landing page from the DIVI collection and it sent as 20 pages of code. What am i doing wrong?
Thanks

 

Sorry - here's the link to the landing page on the website - it looks amazing. https://rivercottagefarm.net/7486-2/
Here's a small portion of what my customers got in their inboxes.


[et_pb_section fb_built="1" custom_padding_last_edited="on|phone" admin_label="Header" _builder_version="3.22" use_background_color_gradient="on" background_color_gradient_start="rgba(0,0,0,0.5)" background_color_gradient_end="#000000" background_color_gradient_type="radial" background_color_gradient_direction_radial="bottom right" background_color_gradient_start_position="30%" background_color_gradient_overlays_image="on" background_image="https://rivercottagefarm.net/wp-content/uploads/2019/11/butcher-01-1.jpg" custom_padding="20vw|0px|20vw|0px|true|false" custom_padding_tablet="100px||100px||true" custom_padding_phone="60px||60px||true"][et_pb_row _builder_version="4.0.6" custom_padding="27px|0px|27px|0px|false|false"][et_pb_column type="4_4" _builder_version="3.25" custom_padding="|||" custom_padding__hover="|||"][et_pb_text _builder_version="4.0.6" text_font="Cairo|600|||||||" text_font_size="20px" text_line_height="1.5em" header_font="Vast Shadow|||on|||||" header_font_size="80px" header_letter_spacing="3px" header_line_height="1.5em" text_orientation="center" background_layout="dark" max_width="80%" max_width_tablet="" max_width_phone="" max_width_last_edited="on|phone" module_alignment="center" custom_margin="0px||0px||true" custom_padding="3vw||2.5vw" custom_padding_tablet="20px||10px|" custom_padding_phone="" custom_padding_last_edited="on|desktop" animation_style="fade" header_font_size_tablet="45px" header_font_size_phone="35px" header_font_size_last_edited="on|tablet" header_text_shadow_style="preset3" header_text_shadow_vertical_length="0.3em" header_text_shadow_blur_strength="1em" header_text_shadow_color="#000000" border_width_all="2px" border_color_all="rgba(255,255,255,0.18)" border_width_right="0px" border_width_left="0px"]

Thanks so much!

 

Thanks