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→INVESTIGATION 3: SENDING EMAIL BETWEEN MTAs (NO ENCRYPTION)
Your '''vm2''' server should now be capable of '''sending''' and '''receiving''' email, but we can't be certain until we test it. This also would not help the users on the other machines in the network, which are still not capable of receiving email.
# Repeat the configuration from investigation 2 on vm3 (swap vm2 and vm3 in the instructions so that you are configuring vm3, and using vm2 to test the connections).# Once that is complete, send an email from '''root on vm2 ''' to '''root on vm3''', and then reply '''from vm3 to vm2'''. # If both messages arrive, both MTAs are working. If not, use the troubleshooting tools and techniques you have already learned to diagnose and fix the problem.
{{Admon/important |Backup your VMs!|You MUST perform a '''full backup''' of ALL of your VMs whenever you complete your '''OPS335 labs''' or when working on your '''OPS335 assignments'''. You should be using the dump command, and you should use the Bash shell script that you were adviced to create in order to backup all of your VMs.}}
