Greetingsas the ESA does not store the messages, there is no way to get a submission done without the original message out of the end users mailbox.Best regardsMartin
Hello Fraser,
in the Email Security Appliance the entry of the Sender under Mail Policies -> HAT Overview -> (select Sender Group entry) -> Add Sender can be done in the following formats:
IPv6 addresses such as 2001:420:80:1::5IPv6 subnets su...