Validating mx record
Registry users may query and view the data, generate printable reports and create Well-Known Text (WKT) compliant with ISO 19162.The Registry supports anonymous (guest) access, but also permits the user to register for additional services, such as the export of the entire dataset.By checking the digital signature, a DNS resolver is able to check if the information is identical (i.e.unmodified and complete) to the information published by the zone owner and served on an authoritative DNS server.
When Office 365 finds the correct TXT record, your domain is verified. You cannot prevent that kind of problems by validating input. For example a name like O'Reilly is perfectly valid input, but could cause a crash or worse if inserted unescaped into SQL.The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry ( or, as a downloadable zip files, through IOGP's EPSG home page at org.
The geographic coverage of the data is worldwide, but it is stressed that the dataset does not and cannot record all possible geodetic parameters in use around the world.