For cases in which users need to whitelist IPs for our email server, we need to configure the email server to use Mandrill's static server, instead of the default dynamic one.

This will be available via our server side configuration file:

C:\Program Files\Sisense\PrismWeb\vnext\config\default.yaml

To switch to the static email provider, replace the existing "api_root" configuration to "http://static.mandrillapp.com/api/1.0" (which you can see one line below the existing "api_root").

Mandrill's static api can use any of the IP's listed below, so make sure to whitelist all of them in the firewall: 

54.245.105.162
54.245.105.146

52.68.86.217
52.68.3.64

52.74.127.117
52.74.30.79

52.64.9.77
52.64.27.232

54.72.103.126
52.17.6.26
52.16.99.88

54.207.77.10
54.207.98.204

52.7.167.198
52.7.100.156
52.6.223.177
54.152.96.156

54.71.32.218
54.71.88.34
54.70.134.182

And of course don't forget to whitelist the domain itself: static.mandrill.com 

*Please note that Mandrill IPs may change from time to time.