The Symantec Mail Security for Domino — MPE installation script creates a
directory named Symantec. (All Symantec products share this directory for
items such as Symantec program libraries and executable files.)

By default, the Symantec directory is installed in the following location: /opt

You can specify a different location during installation.

Symantec Mail Security for Domino — MPE creates the following directories:

Symantec Mail Security for Domino — MPE engine .../Symantec/bin

Symantec Mail Security for Domino — MPE engine databases
(savmpe.nsf, savmpelog.nsf, and savmpehelp.nsf)

Virus definitions files that are specific for the operating system .../Symantec/virusdefs

Technology to download virus definitions files and program updates .../Symantec/LiveUp

Detailed installation steps can be read in the Implementation Guide on page 24-Installing Symantec Mail Security for Domino —
MPE: ftp://ftp.symantec.com/public/english_us_canada/products/symantec_mail_security/3.2_domino_mpe/manuals/smsdommpe.pdf