I have a bizarre issue where in some cases the Delivery Options configured to auto-forward e-mail to an external address does not work.
The scenario appears to be when an Outlook client has an auto-forward rule to an Exchange Equipment mailbox which has the delivery options to forward to an external e-mail address. The auto-forward rule works on the client end, as it does appear in the Equipment mailbox, but never gets delivered to the external e-mail address.
When composing a regular e-mail to the Equipment mailbox, it does get delivered to both the mailbox and the external e-mail address.
The issue appears when auto-forwarding an auto-forwarded message. Is this a known issue in Exchange/Outlook and/or is there any way around it besides configuring the auto-forward on the client end to send directly to the external e-mail address, essentially bypassing the Equipment mailbox?
I would prefer to resolve the issue with the current e-mail setup, as it would be a more involved process with the bypass.