Exson Make the PrintCustTrans.php use smtp mail doable.
Exson: Add SendmailBySmtp function to MiscFunctions.php
Exson: Make the smtp mail available for PrintCustTransPortrait.php
Exson: Make smtp mail available for PDFDIFOT.php and fixed the bug that the result should be data within acceptable days instead of out of the range.
Exson: Make smtp available for PDFDeliveryDifferences.php.