I'm having trouble getting SPX encryption to work correctly with a newly deployed XG 310 running v17.0.3 (MR3).
I have under Email > Encryption: Default SPX Template -> Customized SPX Template
In the SPX Templates section, I have : Customized SPX Template; customized to my liking. As far as I understood it, this global spx template should activate when it sees the x-sophos-spx-encryption value yes. I had setup the exchange server rules to trigger activation of this header value, but after sending the test emails - looking at the headers, I can see the values set to yes, however, SPX did not activate.
On the other hand - if I apply my customized SPX template to an SMTP policy, all emails gets sent with SPX enabled.
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