I am using the UTF-8 charset in this way:
<meta http-equiv="Content-Type" content="text/html"; charset="UTF-8">
Although with this my HTML looks good either by opening it in different browsers or in gmail, the same thing does not happen in managers such as outlook or the mail manager of windows 10, where it does not recognize the accents or special characters, despite the fact that I have read on the internet that to solve this problem is UTF-8 the charset that is usually used. Should I include some other charset?