mobile

As the title states I cannot send videos or gifs through MMS because they exceed my carriers size limit (1mb). Ive had this phone for a while but I rarely have to send videos so It hasnt bothered me much. Every other phone I have had has automatically resized the file but I cant figure out how to get the Oneplus to do it. I tried the default messenger app as well as textra and there is no difference. Any help would be appreciated.