https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/54382.aspxFri, 30 Apr 2010 05:32:04 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:54382MyInforpathAccount0https://www.infopathdev.com:443/forums/thread/54382.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=54382Hi, Coule you suggest me how to validate multiple email address separated by a semicoln ";" in a textbox in infopath. Right now i am able to validate a single email address by using ([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?) in the custom pattern box. Thanks in Advance.