curl-email-list-with-cr.sh

#!/bin/bash
# -F',' will split by comma
# BEGIN{RS="\r\n"} will remove \r\n (crlf) from the end of the string
# {print $3} will take the 3rd column and pass it to the next command
# -G option will read the data-urlencode

cat some.csv | awk -F',' 'BEGIN{RS="\r\n"}{print $3}' | while read x; do curl -v -G --data-urlencode "email=$x" \
   -X POST "https://path/to/the/host" \
   -H "accept: */*" \
   -H "Authorization: Bearer some-jwt-string-for-authorization"; done