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→Configure mailing list for postfix
<pre>
[root@pri-dns ~]# echo "ops535m: adm,ftp" >> /etc/aliases
[root@pri-dns ~]# echo "smtp-lab: student,instructor" >> /etc/aliases
[root@pri-dns ~]# newaliases
</pre>
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:* Compare the results for "VRFY ops535m" in this investigation and the previous one and comment on their difference.
:* Login using your Seneca user name <senaca_name> and execute the following command:
<pre>
/usr/sbin/sendmail -bv postmater
</pre>
:: You should get a response similar to:
<pre>
Mail Delivery Status Report will be mailed to <seneca_name>.
</pre>
:* Type the "mail" command and check for the "Mail Delivery Status Report" and answer the following questions:
:** (a) If a message is addressed to "postmater", who will actually receive the message?
:** (b) If a message is addressed to "smtp-lab", who (may be more than one) will actually receive the message?
:* Study the /etc/aliases file on VM2.
= Investigation 3: mail queues (on postfix) =