Despite the error and questions about the possibility of another recount or a byelection, Elections Canada spokesperson Matthew McKenna said "the result of the recount is final."
"The Canada Elections Act does not explicitly provide for the appeal of a judicial recount and Elections Canada is unaware of any appeals brought to a court following a recount," said McKenna.
Elections Canada said that this is the only case they know of in the recent election of an envelope containing a marked ballot being returned to a voter because of an incorrect address.
McKenna said the returned vote was never part of the recount.
"Any vote that doesn't get to us on time to wherever it's meant to go, whether it's the local office or to our accounting facility in Ottawa, the law basically dictates that it can't be counted," he said.
"So even if it's something that happens as a result of an error on our part, there's really no mechanism for that to be counted."
McKenna said the only thing that could lead to a change in the result is someone officially contesting it.
"Anyone can make an application to a judge to say that they want the results of the election to be reviewed," he said. "There's a possibility that that happens... as far as I'm aware, nobody's put forward such an application yet."