A decision by the U.S. government’s General Services Administration to go with Google over Microsoft for internal messaging has really annoyed the folks at Microsoft.

In a Microsoft blog post, the company actually detailed how the GSA will replace “several different versions of IBM's Lotus Notes and Domino software with Google for its own e-mail.”

The Why Microsoft blog post admitted Microsoft is “disappointed” that it won’t “provide products for the GSA's internal messaging needs.”

Microsoft added in the blog post it wants to understand “more about GSA's selection criteria - especially around security and architecture.”

The company additionally pointed out that “so many state and local governments continue to choose Microsoft.” The post also took a swipe at Google and its recent attempt to add functionality to its productivity apps.

Businesses have rejected Google, said Microsoft. WinWire, Bradshaw and Weil, Phaeton Automotive, and Vinci are just some of the companies who say, “Google cannot meet their requirements,” reported Microsoft.

“Some of our customers don't seem to be impressed with the value they receive from Google,” Microsoft said.

Also, Microsoft pointed out that the state of California concluded that Google failed “to meet many of their basic requirements around functionality and security. “

Minnesota and New York City also have rejected Google’s offerings.

Google has not been passive in this struggle with Microsoft to win government contracts. TechZone360 reports how Google recently sued the U.S. government in an attempt to change the bidding process, that it complained, favored Microsoft. That case was about the Department of the Interior, which Google says, allegedly excluded Google from bidding on providing an e-mail system for the department’s 88,000 employees. Google claims that it was unfair the Interior department only would allow systems that used Microsoft's business e-mail software, TechZone360 reported.