Whitelist Messages server IP addresses

This article lists the Messages server IP addresses to whitelist on your email server, including the full current IP range and guidance on why the entire range must be added instead of a single address.

💡Quick answers

  • Why do I need to whitelist Messages server IP addresses? Whitelisting ensures your email server does not block or filter emails sent from Finalsite Messages to your constituents.
  • Where can I find the current list of Messages IP addresses? The current list of Messages server IP addresses is provided directly in this article and includes a range of addresses starting with 159.135.236.59 and 198.244.49.16 through .26.
  • Who should whitelist these IP addresses? Your IT team can complete this task since it requires access to your organization's email server or spam filter settings.
  • Is it enough to whitelist just the IP address currently sending my emails? No; Finalsite adds new servers and shifts load across them, so you should whitelist the full range rather than a single address to avoid future delivery issues.
  • Where do I find the correct syntax for entering these addresses? Refer to your spam filter or email server's own documentation to confirm the correct syntax for adding IP ranges to a whitelist.

Adding the Messages server IP addresses to your email server's whitelist is a good way to ensure constituents receive emails sent from Messages. This is a task that can be done by your IT team who have access to your IP settings onsite.

Here is the current list of Messages server IP addresses from which messages are sent:

  • 159.135.236.59
  • 198.244.49.16 
  • 198.244.49.17
  • 198.244.49.18
  • 198.244.49.19
  • 198.244.49.20
  • 198.244.49.21
  • 198.244.49.22
  • 198.244.49.23
  • 198.244.49.24
  • 198.244.49.25
  • 198.244.49.26

Finalsite adds new servers as needed and adjusts the servers that schools use in order to balance load inequities that arise. As such, it is best to whitelist the full range of our Messages IP addresses. It's not prudent to whitelist only the server you currently use, as it is not possible to say your IP will always stay the same.

Refer to the software documentation to confirm the correct syntax required by your spam filter.

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