Set mail crypt private password with OAUTH?

[Max Kostikov]

We currently use Dovecot and mailbox encryption via the 
mail-crypt-plugin.
With standard password authentication, we set the value of the 
individual
password to encrypt the contents of the 
userdb_mail_crypt_private_password
mailbox in the SQL query.
Is it possible to set the userdb_mail_crypt_private_password value when
authenticating via OAUTH2 ?

-- 
Best regards,
Max Kostikov