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Unreachable SFC-CNS E-mail Error

November 20, 2013
To Users of SFC-CNS
Shonan Fujisawa ITC
Unreachable SFC-CNS E-mail Error

Lately, we received some requests about the following troubleshooting;

  • Not delivered emails which users sent via the SFC-CNS SMTP server
  • Delayed email receiving via the SFC-CNS IMAP server

We have found that IP addresses of SFC-CNS SMTP servers are registered to Real-time Blackhole List (RBL) in any security appliances and applications. We have already identified causes and applied for deleting the IP addresses in RBL.

If you have not sent or received SFC-CNS emails yet, please contact us.

Thank you for your patience and understanding.

Last-Modified: November 21, 2013

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