Description This article describes what to check when receiving the
error 'reject=451 4.3.2 Please try again later' from FortiMail. Scope
FortiMail. Solution Sender receive bounce email with a statement: Remote
Server returned '<[x.x.x.x] #5.0.0 smtp...
Description This article describes the Telco side feedback saying that
the FortiVoice SIP server is sending a lot of ACK requests to the Telco
side. Scope FortiVoice. Solution Perform packet capture by navigating
under System -> Network -> Traffic Ca...
Description This article describes that certain extensions are not able
to receive calls and to fix it. Scope FortiVoice. Solution Navigate
under System -> Network -> Traffic Capture. Under the Peers, select to
relevant Extension (Caller and Callee) ...
Description This article describes a scenario where a Virtual Machine
randomly crashed and failed to initialize. Core Module XXXXX: Sandbox VM
XXXXXXX is not in good condition, waiting for recovery. Scope
FortiSandbox -1000F. Solution SSH into the de...
Description This article describes how to activate the Office 2019
license in the FortiSandbox. Scope Fortisandbox with Office 2019.
Solution Perform CLI #vm-license -l to make sure Windows product keys
validation shows 'passed'. Perform CLI 'diagnos...