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Email Security: IPs that the ES uses to download thumbprints/AV.dat updates
03/26/2020 1029 11601
IPs that the ES uses to download thumbprints/AV.dat updates
Add the following IP addresses to your firewall to ensure that the ES can successfully download required updates/spam definitions
IP Address of Datacenter:
NOTE: To download the Thumbprints / Av .dat updates successfully , please excluded ES datacenter IPs/FQDNs from all security services on Firewall that scans on port 80/443.