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Hi,I’m trying to understand the exact behavior of the header **X-ESA-CF-TLS-Mandatory** on an ESA and would appreciate clarification from Cisco or anyone with deep ESA experience.What I am trying to achieveWe externally add the header:X-ESA-CF-TLS-Ma...
Hello everyone,I have a strange problem with one of my (virtual) ESAs. In the licenses “Email Security Appliance Bounce Verification” is “not requested”. The field is grayed out, I cannot request it.I have several identical ESAs. For all others, the ...
Hi everyone,Is there a way to block a specific receiver MX?I want to prevent my users from accidentally replying to typosquatting hosts.There are hosts that collect typosquatted domains and set up an MX directly behind them.For example, "oulook.com" ...
Hello everyone,First: The filters were all set correctly and were also seen by the ESA. (I tested it: if the header is present, then write to the log.)I have an official statement from Cisco about this:-The header X-ESA-CF-TLS-Mandatory is used to en...
Hi Ken,Such a pity, I was hoping that the ESA could be made to look at the receiver :(.But your ideas are very good, I will look at them and discuss with my colleagues.Many thanks for that!
