We can edit the aliases file for the system and set our address as the destination for root. so you can edit /etc/aliases (or wherever the aliases file has gone) and look at the existing aliases. There is probably an entry for root (possibly commented out) that shows a fictitious user. Add an entry like:
root: your_id@your_email.address
and save the file. Run the newaliases command and all mail to root will go to you.
Example:
# cat /etc/aliases
# @(#)87 1.3 src/bos/usr/sbin/sendmail/aliases, cmdsend, bos530 6/15/90 23:21:43
# IBM_PROLOG_BEGIN_TAG
# This is an automatically generated prolog.
#
# bos530 src/bos/usr/sbin/sendmail/aliases 1.3
#
# Licensed Materials – Property of IBM
#
# (C) COPYRIGHT International Business Machines Corp. 1985,1989
# All Rights Reserved
#
# US Government Users Restricted Rights – Use, duplication or
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
#
# IBM_PROLOG_END_TAG
#
# COMPONENT_NAME: CMDSEND aliases
#
# FUNCTIONS:
#
# ORIGINS: 10 26 27
#
# (C) COPYRIGHT International Business Machines Corp. 1985, 1989
# All Rights Reserved
# Licensed Materials – Property of IBM
#
# US Government Users Restricted Rights – Use, duplication or
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
#
##
# Aliases in this file will NOT be expanded in the header from
# Mail, but WILL be visible over networks or from /bin/bellmail.
#
# >>>>>>>>>> The command “sendmail -bi” must be run after
# >> NOTE >> this file is updated for any changes to
# >>>>>>>>>> affect sendmail operation.
##
# Alias for mailer daemon
MAILER-DAEMON:root
# Following alias is required by the new mail protocol, RFC 822
postmaster:root
# Aliases to handle mail to msgs and news
nobody: /dev/null
# Alias to which SSA related warnings are mailed
ssa_adm: root
root:Unix-Support@123software.com
#