[Update August 28 8:30 AM]
We have confirmed that this issue was resolved as of August 27 11:55 PM.
We sincerely apologize for any inconvenience caused.
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Since around 3:00 p.m. August 27, we have been experiencing difficulties with sending and receiving emails due to a malfunction of the mdxII Operations Office mail server.

We will provide an update once the issue has been resolved.

We apologize for the inconvenience and appreciate your understanding.