Topic #: - All AWS-SysOps Questions

A. Add the instance to the security group for the SMTP server and ensure that is permitted to communicate over TCP port 25.
B. Disable the iptables service on the SMTP server so that the instance can properly communicate over the network.
C. Install an email client on the instance to ensure that it communicates correctly on TCP port 25 to the SMTP server.
D. Add a rule to the security group for the instance to explicitly permit TCP port 25 outbound to any address.

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