Jerry Geis wrote:
It should be:
DAEMON_OPTIONS(`Port=smtp, Name=MTA')
I changed it to this and restarted sendmail, re-ran the test and still
open.
To fix the OpenRelay, just edit your /etc/mail/access to have it
something like that:
8<=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-C-U-T-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
# Check the /usr/share/doc/sendmail/README.cf file for a description
# of the format of this file. (search for access_db in that file)
# The /usr/share/doc/sendmail/README.cf is part of the sendmail-doc
# package.
#
# by default we allow relaying from localhost...
localhost.localdomain RELAY # Loopback address
to enable local mails to be relayed
localhost RELAY # Loopback
address to enable local mails to be relayed
127.0.0.1 RELAY # Loopback
address to enable local mails to be relayed
212.63.24.21 RELAY # your Public IP
address
192.168.1. RELAY # Your
Internal LAN address (all mails coming from these IPs will be allowed)
yourdomain1.com RELAY # Your Domain number 1
yourdomain2.com RELAY # Your Domain
number 2 (if you have multiple domains)
8<=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-C-U-T-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Then save your file and type this:
[root@bluewall ~]# makemap hash /etc/mail/access < /etc/mail/access
To generate the database from the file /etc/mail/access and everytime
you make changes in the file /etc/mail/access, you need to retype this
command to enable the changes...
Like this only mails that will be touched by one of these conditions
will be allowed to be relayed and every other mail will be rejected
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