If these two articles (which are really the same article) are true:

https://www.thegatewaypundit.com/2022/11/finally-finally-finally-election-group-uncovers-fraud/

https://www.thegatewaypundit.com/2022/12/real-time-election-fraud-database-latency/

it seems the fraudsters found a pretty ingenious way to commit election fraud. That would give the election fraudsters access to 10's of thousands or 100's of thousands, or more, pristine official ballots and it appears no one was the wiser, until these articles were published.

However, if the ballot envelope has the address it was sent to, which I assume it does (but I can't remember what my ballot envelope had on it), unless the fraudsters were able to reprint new ballot envelopes wouldn't inspecting the envelopes make it such that you could identify invalid addresses and thus know these ballots were undelivered? I assume there is also some auditing the post office does for undelivered mail, so that should be able to be checked also. Though it seems some unscrupulous post office employees might have been involved in the election fraud. And I guess ballot envelopes are usually not provided because they have voter information, another benefit for the fraudsters.