Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_72 (extranet VARCHAR, intranet VARCHAR, name VARCHAR)
### Question:
If the intranet entry is Yes, what is the extranet entry for Microsoft Exchange server?
### Answer:
SELECT extranet FROM table_name_72 WHERE intranet = "yes" AND name = "microsoft exchange server"