I am having the below given data
Mr. SIM Kamsath, Vice President & Branch Manager Tel: +855 (0)12 922 660, +855 (0)15 900 269 E-mail: getemail(\'acledabank.c
E-mail:(?=(?:(?!E-mail)[\s\S])*P.O. Box)\s\S*\.([\s\S]*?)(?=Fax)
Try this.Grab the capture.See demo.
https://regex101.com/r/rU8yP6/15