Hello,
I want to give access to internal devices and third party software on network joined machines on the internal network to be able to use exchange 2013 to send email to external and internal recipients.
I setup a new Receive Connector with role of FrontendTransport.
Under security I have enabled
-Transport Layer Security (TLS)
-External secured (for example, with IPSec)
Under permission groups I have Exchange servers ticked (I also tried anonymous, have same issue)
Under scoping I have remote network settings being my subnet e.g. 192.168.10.0/24
I thought that should do what I want. However, when I activate the connector, my submission queue gets bombarded with spam. Mostly from randomcharacters@yahoo.com, with subjects that are like ascii characters. e.g. within 24 hours I had 140,000 emails in the queue, so I ended up having to disable my SMTP forwarder queue and deleting the queue directory altogether then restarting.
Do I have it configured incorrectly, or is my spam issue originating from a machine on the subnet?
Thanks,
Blair
Blair
