I have just set up two new clusters (220.127.116.11) with 4 nodes each.
I have configured SMTP settings similar on both (pointint to my local exchange server, default port, no auth). One of them succeeds in the configuration and the other one doesn't.
using ncli cluster get-smtp-settings i get the following output on the troubled clutster:
Status : failedMessage : Failed to send email through the smtp serverLast Retry Attempted : Wed Nov 02 14:23:13 CET 2016
But if I try to do a ncli cluster send-test-email it works and send an e-mail without issues.
Does anyone got an idea what could cause this behavior?
Best answer by Jumario
I solved this by adding all the CVM IP's to the allowed internal relays list on Exchange. Before i only allowed the cluster IP's which caused the SMTP test to fail. As soon as the CVM IP's got added the test succeeded.