From the FEC:

 

You may have received this email today from the FEC:

Dear Treasurer,

As part of its continuing effort to improve customer service while saving taxpayers money, the Federal Election Commission (FEC) is pleased to announce that the Reports Analysis Division (RAD) will begin sending Non-Filer Notifications via e-mail in February 2013.  Non-Filer Notifications are sent when a required Report of Receipts and Disbursements (Forms 3, 3X, 3P), or a Report of Contributions Bundled by Lobbyists/Registrants and Lobbyist/Registrant PACs (Form 3L) has not been received at the FEC.  

 

Once the e-mail process begins, you will no longer receive paper Non-Filer Notifications through the mail, so please ensure that the e-mail address listed on your committee.s Statement of Organization (FEC Form 1) is current and correct. (Please provide no more than two (2) e-mail addresses for your committee.) To update your e-mail address, please file an amended Form 1.

If you would prefer to continue to receive Non-Filer Notifications on paper, please file a miscellaneous document (Form 99 for electronic filers), to indicate this preference.