Disclaimer: This tool has no warrenty and I assume no liability for your mail loss, for example, a lost tax return to IRSThis is the tax season again. I hate go to the post office to just get a certified label to make sure my tax return is delivered. I also hate to pay $4.15 for a certified mail. I know there is a way to track a plain mail with a barcodeSee my other post here, but it is not easy to use. Thus, I made a tool.How to use itVisithttps://slu.t.cuitian1.com/envelopeType in the recipient address and your return address, click generateRemember your serial number and the recipient zipco
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