This regex pattern is designed to match the provided target items while excluding everything else. It consists of two parts: (1) a detailed, robust email validation segment that handles a wide variety of valid email formats (such as those with IP addresses, special characters, subdomains, and international formats) and (2) an ISO 8601 timestamp validation segment that matches dates and times in valid, specified formats including both basic (no colons, hyphens) and extended formats. Each segment ensures strict adherence to the formats while keeping flexibility for the target cases.