IT Whitelist & Firewall

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Overview

Polygon One is a web-based platform. In corporate networks with firewalls, proxy servers, or email security software, access to the platform or links in our emails may be blocked.

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Domains for the Whitelist

The following domains should be allowed in your firewall, proxy, and email security software:

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Common Problems

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SSL Certificate Error

Symptom: The browser displays NET::ERR_CERT_AUTHORITY_INVALID or “Your connection is not private”. Cause: Your corporate firewall performs SSL/TLS inspection and replaces the Polygon One certificate with an internal certificate that the browser does not trust. Solution:

• exempt app.polygon-one.com from SSL inspection, or
• install the internal corporate CA certificate in the browser’s trusted root certificate store

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Links in Emails Do Not Work

Symptom: Invitation or activation links from Polygon One emails lead to an error page or an invalid URL. Cause: Email security software such as Microsoft Defender Safe Links, Proofpoint, or Mimecast rewrites or shortens URLs during scanning. Solution:

• whitelist app.polygon-one.com and contact.polygon-one.com in the email security software
• alternatively, copy the link directly from the email and open it manually in the browser

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Emails Land in Spam

Symptom: Emails from Polygon One land in the spam or junk folder. Solution:

• classify the sender address invite@contact.polygon-one.com as trusted
• allow the domain contact.polygon-one.com in the email security software
• mark emails from @contact.polygon-one.com in the spam folder as “Not junk”

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Technical Details for IT

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Email Authentication

Our emails are fully authenticated:

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SSL Certificate

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Contact

If you need further technical information, please contact our support team: