Below is a list of several URLs that should be white-listed by the IT department of any gym with rigid internet security. Failure to do so could result in errors on the page, or Club OS ceasing all functionality.
If you have any trouble in receiving emails from Club OS, you may add the following records to your domain's SPF (Sender Policy Framework) to ensure that messages are routed appropriately:
v=spf1 include:\_spf.google.com ~all
v=spf1 include:mailgun.org ~all
Adding the above records will ensure you're pulling data from an authoritative data source (as changes are posted, having the above in your SPF will pull the latest IPs and Subnet Masks). If a non-authoritative list is desired or needed, you may run the following terminal commands:
nslookup -q=TXT \_netblocks.google.com 184.108.40.206
nslookup -q=TXT \_netblocks2.google.com 220.127.116.11
nslookup -q=TXT \_netblocks3.google.com 18.104.22.168
nslookup -q=TXT spf1.mailgun.org
nslookup -q=TXT spf2.mailgun.org
Below is an authoritative list of the dedicated IP addresses Club OS uses for follow-up messaging, email campaigns, and notifications:
If you have any questions, please refer to your IT team for assistance.