Allowing these domains should resolve most access, loading, or email delivery issues.
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Network Requirements
Find out which domains to whitelist to ensure Caplena works on corporate networks.
Firewall & Network Requirements Ensure Caplena works smoothly on corporate networks
If you’re experiencing issues loading Caplena, or receiving emails, this is often caused by network restrictions such as firewalls, proxy settings, or domain blocking.
Please ask your IT team to whitelist the following domains:
Last modified on June 1, 2026