package utils import "regexp" func IsEmailFormat(email string) bool { pattern := `^[0-9a-z][_.0-9a-z-]{0,31}@([0-9a-z][0-9a-z-]{0,30}[0-9a-z]\.){1,4}[a-z]{2,4}$` reg := regexp.MustCompile(pattern) return reg.MatchString(email) }