Exclaimer Cloud: IP whitelist

The Exclaimer Cloud service addresses a number of IP addresses. If you use third party anti-spam or virus vendors such as Mimecast (or other smart hosts), you may need to whitelist these addresses. This ensures that the third-party vendor accepts the SMTP connection from Exclaimer Cloud, instead of rejecting it (which results in message delivery failure).

IP addresses used by Exclaimer Cloud

13.70.157.244
104.210.80.79
104.209.35.28
191.237.4.149
104.40.229.156
51.140.37.132
51.141.5.228
52.169.0.179

Note: Please provide your third-party vendors with this list, so they can update/add entries as needed.  

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