The HCL Domino Development team has identified an issue which will affect ALL Domino server versions as of TODAY, December 13, 2024.
If you restart your server, a router error will occur which results in delivery failures due to a routing loop. Mail rules will also start failing. This is a date/time issue in our code. Hotfix/es are already available.
To avoid the problem please do NOT restart your servers. Please do not attempt to fix the issue by changing operating system time into the past.
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0118192