Hey @pankajs3
You can use below Regex-
(([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|([\w-]+\.)+)[a-zA-Z]{2,4}|[0-9]{1,3}\]?)
Reference Link - regex101: build, test, and debug regex
Above Regex will return you Groups just capture first group to get your email address from string.
Regards…!!
Aksh