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Simple Message Notification (SMN) - important changes

The source IP addresses of the SMN service are changing. These are used to send notifications via the HTTP(S) protocol.

The current source IP address is and will be replaced by the following IP addresses:

  • and

The changes will come into effect on 24 October.

To avoid any interruptions to the configuration of your SMN services, please also change your firewall rules to allow incoming connections from the new IP addresses and

Further information can be found in the SMN area of the Help Center.


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