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Guides > IP Addresses for Whitelisting

IP Addresses for Whitelisting


For hosted Halo users your traffic passes through the below IP addresses. This is for API requests as well as SMTP/IMAP/POP connections.


UK

Addresses to whitelist;

18.134.104.113

18.134.36.210

18.133.135.248


DNS listing for IPs;

d3ukmail.nethelpdesk.com


USA/Americas

Addresses to whitelist:

52.200.167.248 

3.225.188.37 

50.19.232.234


DNS listing for IPs;

d3usmail.nethelpdesk.com


AUS/APAC

Addresses to whitelist;

54.252.23.238

3.105.157.254

54.79.30.202


DNS listing for IPs;

d3ausmail.nethelpdesk.com



DE/FRANKFURT/EU

Addresses to whitelist;

3.66.25.168 

18.195.252.203 

3.64.238.94 


DNS listing for IPs;

d3eumail.nethelpdesk.com


CA/CANADA

Addresses to whitelist;

3.97.110.140 

15.222.188.1 

3.98.156.147 


DNS listing for IPs;

d3camail.nethelpdesk.com

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