Quote from: kenji1286 on June 16, 2018, 02:47:27 PM

I checked carefully in the Inbox , Spam and Trash but did not see the email sent from Bitcointalk Forum.

My screenshot :
https://uphinhnhanh.com/image/1CuUe9

I guess you didn't choose the "Receive forum announcements and important notifications by email" option on your profile.
Perhaps the next hope is to create a PGP signed message on your email to reclaim your account.
Hopefully, the email address in the previous post is not changed.

What Operating System are you using right now?

The first step, you must create FingerPrint for your email.
Then create a PublicKey and upload to KeyServer.
Next, create a Sign Message with PGP.
If your email address matches, it will be verified.

Please look at the tutorial I have ever made about PGP/GPG signed message at the following link:
https://bitcointalk.org/index.php?topic=3221263.0
(Use Google to translate into your language).

Feel free to ask, if you still have difficulties.
Sorry if I write bad English.