How can I send mail to hosts that cannot be pinged?

How can I send mail to hosts that cannot be pinged? From: jupiter.sun.csd.unb.ca!dedourek (John DeDourek)


AIX 3.2 as shipped is configured to only send mail to mail addresses
which include a host name. Many organizations use a mail address whose
"host name" part is not a host name (technically an MX name). To change
the configuration of the AIX mailer, login as root. Then edit the file
/etc/sendmail.cf to remove the comment marker ("# ") at the beginning of
the line which reads:
# OK MX

Now rebuild the machine readable form of the configuration with
sendmail -bz

and finally restart signal sendmail to load the new configuration by one
of the following:
reboot
or
stopsrc -s sendmail
startsrc -s sendmail
or
kill -1 `cat /etc/sendmail.pid`


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