<p>Using the USPS website’s click-n-ship feature, I am trying to print postage for a couple of large envelopes that need to be sent to a specific IRS office. The address provided by the IRS does not include a street name/number – only city, state, 9-digit zip. When I try to finalize the postage, the USPS website “standardizes” the mailing address to a zip with different “plus four” digits (and adds a street name). This is a problem because the USPS label is specific to the mailing address – it’s not simply a matter of printing out the postage. I don’t want the envelopes to go to the wrong office. Any suggestions on how to override the “standardized” address feature? I know this is a particularly specific question for CC, but figured it’s worth a try!</p>