{
"userid": "member"
}curl --location --request POST 'https://qyapi.weixin.qq.com/cgi-bin/exmail/mail/get_newcount' \
--header 'Content-Type: application/json' \
--data-raw '{
"userid": "member"
}'{
"errcode": 0,
"errmsg": "ok",
"count": 1
}