Hm, funny how that happens.
From the story here:
Up to 30,000 missing emails sent by former Internal Revenue Service official Lois Lerner have been recovered by the IRS inspector general, five months after they were deemed lost forever.
The U.S. Treasury Inspector General for Tax Administration (TIGTA) informed congressional staffers from several committees on Friday that the [Lois Lerner] emails were found among hundreds of “disaster recovery tapes” that were used to back up the IRS email system. ...
In June [IRS Commissioner] Koskinen told Congress the emails were probably lost for good because the disaster recovery tape holds onto the data for only six months. He said even if the IRS had sought the emails within the six-month period, it would have been a complicated and difficult process to produce them from the tapes. ...
There are 250 million emails on the tapes that will be reviewed. Officials said it is likely they will find missing emails from other IRS officials who worked under Lerner and who said they suffered computer crashes [too].