Maintenance of Spam quarantine server (on Feb. 25) and Spam notification email after maintenance
February 13th, 2026
To Users of SFC-CNS
Maintenance of Spam quarantine server (on Feb. 25) and Spam notification email after maintenance
We will perform maintenance work on CNS spam quarantine server on February 25th.
There is a possibility of invalidation of URL on Spam notification email after this maintenance.
記
- About maintenance
Period: 9am to 5pm, February 25th, 2026
Detail: CNS spam quarantine server (quarantine2.sfc.keio.ac.jp)
Affected: Access to spam quarantine server may be failed
- About possibility of change of URL on Spam notification email
After the maintenance, URLs in spam notification mails issued before the maintenance may become invalid. If you are prompted to log in when clicking a URL in a spam notification email, we strongly recommend that you close the tab and follow the instructions below.
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Pattern 1: You received spam notification emails sent on Feb. 26th, 2026 or later
Use the new URL mentioned in the spam notification mail. - Pattern 2: You don't have spam notification emails after maintenance
- You can check if emails to you are quarantined or not, by enter your CNS login name and your CNS login password to login prompt on https://quarantine2.sfc.keio.ac.jp/
- You can contact Shonan Fujisawa KIC to check if emails to mailing lists are quarantined or not.
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Pattern 1: You received spam notification emails sent on Feb. 26th, 2026 or later
Last-Modified: February 13, 2026
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