TSD staff will no longer receive correspondence directly from the public. Drop boxes are available for taxpayer use at CRA locations and they are emptied of their contents twice daily. The contents are stamped by CRA mail operations the same day they are received. For the first clearance each morning, items are date stamped with the previous day's date. Also, if a taxpayer wishes to have proof of filing or payment, they can file or pay electronically to be provided with a confirmation number and the option to print a copy.