The below IP’s and DNS names should be whitelisted for web and browser traffic, specifically ports 80 and 443. These are needed to access and use our web sites. DNS Name IP Address www.irth.com 216.37.5.240 and 66.11.9.70 cl.irth.com 216.37.5.224 and 66.11.9.85 sandbox.irth.com 66.11.9.94 and 216.37.5.235 clsandbox.irth.com 66.11.9.80 and 216.37.5.236 test.irth.com 216.37.5.225 cltest.irth.com 216.37.5.226 The below IP’s and DNS names should be whitelisted for email/SMTP traffic, specifically port 25. These are needed to send email to our system. DNS NameIP Address mail.irth.com 66.11.9.110 and 216.37.5.250 The below IP’s and DNS names should be whitelisted for various communication methods including email, web, ftp, sftp, and ftps. Specifically ports 21, 22, 25, 80, 443 and 990. These are needed to allow our communication servers to send email, ticket responses and integrated web service traffic to your systems. DNS Name IP Address smtp1.irth.com 66.11.9.71 smtp2.irth.com 66.11.9.72 smtp3.irth.com 66.11.9.73 smtp4.irth.com 216.37.5.251 smtp5.irth.com 216.37.5.252 smtp6.irth.com 216.37.5.253 smtp7.irth.com 66.11.9.74 smtp8.irth.com 66.11.9.75 smtp9.irth.com 216.37.5.254 smtp10.irth.com 216.37.5.255 smtp11.irth.com 66.11.9.76 smtp12.irth.com 216.37.5.248 CIDR IP Ranges 216.37.5.224/27 66.11.9.64/26
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