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Notification of mail function malfunction

April 2017, 4 We would like to inform you that a problem has occurred with the following contents.
We deeply apologize for any inconvenience and inconvenience caused to our customers.

Bug details

【Date and time of occurrence】
2017/4/28 (Friday) 8:30

[Response completion time]
2017/4/28 (Friday) 15:32

[Contents]
Phenomenon that delivery to some email addresses fails in email delivery
Delivery during the failure period may have more failures than usual.

[Cause]
Network failure in data center

[Our response]
Currently, the switching work to another network has been completed, and the service has been completely restored.

We apologize for the inconvenience to all users.
Thank you for your understanding.

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