To the Senate of the United States:
I communicate herewith a report of the Postmaster-General, which contains the information called for by the resolution of the Senate of the 16th instant, in relation to the means which have been taken for the transmission of letters and papers to and from the officers and soldiers now in the service of the United States in Mexico. In answer to the inquiry whether any legislation is necessary to secure the speedy transmission and delivery of such letters and papers, I refer you to the suggestions of the Postmaster-General, which are recommended to your favorable consideration.
JAMES K. POLK.
James K. Polk, Special Message Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/201178