Hi @Mfon,
did you check if the mailbox in dynamics is setup correctly?
You can check the process under dynamics --> processes. Have a look if you can see what's going on there. If the mails are correctly send but get the status pending, you have to activate your mailbox.
In case you use that mailbox for multiple environments make, be sure that this environment is the one which should be connected. There is a 1:1 relationship between active mailbox and environments.
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Hope that helps.
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