IRS canceled contract with email backup company after Congress started investigating targeting of conservatives...

Wow. The timing was also shortly after Lois Lerner's computer allegedly crashed. I believe this rises to the "smidgen of corruption" level.

Via The Daily Caller:

The IRS signed a contract with Sonasoft, an email-archiving company based in San Jose, California, each year from 2005 to 2010. The company, which partners with Microsoft and counts The New York Times among its clients, claims in its company slogans that it provides “Email Archiving Done Right” and “Point-Click Recovery.” Sonasoft in 2009 tweeted, “If the IRS uses Sonasoft products to backup their servers why wouldn’t you choose them to protect your servers?”
Sonasoft was providing “automatic data processing” services for the IRS throughout the January 2009 to April 2011 period in which Lerner sent her missing emails.
But Sonasoft’s six-year business relationship with the IRS came to an abrupt end at the close of fiscal year 2011, as congressional investigators began looking into the IRS conservative targeting scandal and IRS employees’ computers started crashing left and right.