Skip to Content

Vanderbilt IT

Home > Services > Messaging > antispam > Safe Transmission

Safe Transmission

Recommended Options for Safe Transmission of Blocked File Types

1. Strip the file extension.

Stripping the file extension from the file before sending it as an attachment will allow the file type to pass through the filter. After receiving and saving the file locally, the recipient must add the file extension back to the file by renaming it. Instructions for Windows and Mac OS are available below.

2. Use a file sharing service like Vanderbilt Box or Secure File Transfer.

3. Zip the file.

Using a file compression utility such as StuffIt for Mac or WinZip for PC, compress (zip) the file and send as an attachment.

Stripping the File Extension

Windows

Instructions for the sender:

  1. Right-click on the file you want to send and select Rename from the menu or create a copy of the file and rename the copy.
  2. Rename the file without the extension (e.g., notavirus.bat to notavirus).
  3. In your mail client, create a new message and attach the renamed file.
  4. Be sure to include the original file name and extension in the text of your message so that the recipient will know how to restore the file.

Instructions for the recipient:

  1. Open the email and save the attached file.
  2. Navigate to the location of the saved file.
  3. Right-click on the saved file and select Rename from the menu.
  4. Enter the original file name and extension.
  5. Open the file.

 

MAC OS

Instructions for the sender:

  1. Click once on the name of the file you wish to send.
  2. Rename the file without the extension (e.g. notavirus.bat to notavirus) or you can create a copy of the file and rename that instead.
  3. In your mail client, create a new message and attach renamed the file.
  4. Be sure to include the original filename and extension in the text of your message so that the recipient will know how to restore the file.

Insructions for the recipient:

  1. Open the email and save the attached file.
  2. Hover your mouse pointer over the saved file name and click once.
  3. Enter the original file name and extension.
  4. Open the file.

Last Modified: 2015-04-28