Why can’t I use the vnewaliases command to rebuild the data base for the mail aliases file (etc/aliases)?
For FreeBSD VPS platforms, vnewaliases is a command you can use to rebuild databases for your server’s sendmail aliases file. The vnewaliases command is unavailable on your Linux VPS. Instead, use the Linux/Unix newaliases command to rebuild the database for the /etc/aliases file. Although newaliases is identical to the Linux/Unix sendmail –bi command supported by other Linux/Unix systems, be aware that the makemap command is not equivalent to the newaliasescommand. The newaliases command places an important, sendmail–required token into the database.