We just Upgraded our SOPHOS to new hardware and now we have enough muscle to run the SMTP Proxy for both incoming and outgoing emails for a company.
The only issue I have is that it waits way too long to bounce an email as undeliverable if the UTM can't reach a destination server (for our business anyways). I think it's 3 days and I am not sure if it even sends a "your email has been delayed" type email either during that time.
Is there any way to adjust this? Even by manually modifying a configuration file.
I know on the sophos Email appliance these timings appear to be adjustable. and I know that there is a feature request established for this. Mail Protection: Configurable SMTP Retry Timeout
Dan
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