There is a line that contains emails. If the string contains at least one non-email type gmail.com - the string is not valid.
igoer@gmail.com igoesdr@gmail.com igoer@MAIL.ru igoer@gmail.com sfkjhg@zuzu.com
I tried this: ^ (. + @ Gmail.com). * $ But does not work
^\s*\S+@\S+(?:\s+\S+@\S+)*\s*$- Wiktor Stribiżew/(.*@gmail\.com)$/ui- user273447