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IP Addresses to Enable Relaying For in Microsoft Exchange for the OnceHub Corporate Mailbox Account Feature

If your organization uses Microsoft Exchange, ensure relaying is enabled for these IP addresses:

  • 52.184.200.53  
  • 52.177.197.227  
  • 13.77.100.95  
  • 52.177.198.87  
  • 52.225.219.177  
  • 52.225.218.66  
  • 52.177.199.129  
  • 13.68.89.72  
  • 40.123.38.105
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