Installing a Dymo Printer for Printable Postage
Dymo Drivers can be located here: https://www.dymo.com/en-US/dymo-user-guides
Scroll down to bottom of page to Drivers & Software Downloads
Select: Not Sure Which Software to Choose and click the Compatibility chart
Download and install the driver for your printer model and computer. (Note: 64 bit is more common)
Once installed, close and re-open PostalMate
Choose Tools > PostalMate Settings
Select Carrier Setup on the left pane
Choose the USPS tab
Below Endicia Printable Postage, make sure that Endicia Label Server is selected.
Click the button for Printable Postage settings
On the Postage Settings tab, select the Dymo label printer (If you have a Dymo Twin Turbo installed, you will need to select the Tray: left or right side)
Click Test printer
Click OK to save your settings and close PostalMate Settings.