The phrase "in a message dated" is correct and usable in written English.
You could use it to refer to a message sent on a certain date. For example, "In a message dated April 12th, the company announced an upcoming event."
"And honest speaking we dont have confidence on this welding," Joyce Wang of RTR wrote in a message dated June 7 , 2007
In a message dated Aug. 31, Mr. Yassky predicted that approving the apps would be "a political loser" because of opposition from the black car and livery industries, among others, but "probably a modest political winner with the broader public".
In a message dated 1 May sent to Captain Eric Kowalczyk, the then head of media relations for Baltimore police, an officer detailed a conversation he had with a representative for the singer.
In a message dated June 12 and quietly left last Thursday on the Internet discussion group Shaksper (www.shaksper.net), he said that another poet and dramatist was the more likely author of the poem.
In a message dated July 6 , 2007 Mr. Baum advised the governor about whether to hold a press conference to address questions about the administration's hand in releasing the documents.
The official, Dr. David Graham, part of the Food and Drug Administration's drug safety office, wrote in a message dated June 16 that the agency's approval of Ketek, an antibiotic made by Sanofi-Aventis that is also known as telithromycin, was a mistake.
"It seems that your company is doing a recall even though you are calling it a 'retrieval,' " Neisa M. Alonso, an investigator and recall coordinator with the F.D.A. in San Juan, P.R., wrote in a message date July 16, 2009, to an executive at McNeil.
In an internal message dated Tuesday, one senior Bell Atlantic executive said that involuntary layoffs might become necessary later this year if the voluntary program did not attract enough employees.
Putnam's eagerness to accommodate the Boilermakers is reflected in an e-mail message dated Jan . 3 2003, in the complaint from a Putnam employee, Robert Gowdy, that said, "Boilermakers No.5 is a longstanding profitable client which was very instrumental in our winning" $100 million in business from Boilermakers International.
In one message, dated April 26 , 2000 Matt Young, a director at Merrill Lynch Investment Banking, asks a member of the research department about how to lure LookSmart, an internet company that was a client of Goldman Sachs, to Merrill Lynch.
"Under the minor league policy, collections are performed by the Center for Drug Free Sport, which is a wholly independent entity," Richard Levin, a spokesman for Major League Baseball, said in an e-mail message dated Sept. 15.
