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Cluster information:
I have my k3s kubernetes cluster running in ubuntu server 24.04 Virtual Machines. From each VM it is possible to send notifications through our relay server named: relay.ourdomain.edu. We have an Apache/php server pod running a php application that need to use sendmail (living in the APache/php pod) to send notifications. What I need to do to allow those php notifications to go through the relay.ourdomain.edu smtp relay? Thanks in advance.