Summary An outgoing email file attachment name contains many repeated blanks.
Some email clients are susceptible to buffer overflows which are caused by sending long file names.
In this case, a blank has been repeated many times within a file name. This is sometimes an indicator of a buffer overflow attempt. This also may be an attempt to mask the actual filename. In particular, in some email clients, the file type may not be visible, so the user may be tricked into clicking on an unsafe attachment, and thereby installing an unwanted virus. Buffer overflows More about this general class of attacks, which is the root cause of many attacks on the Internet.