error de email checking

Hello,

for the last two messages, my messages were returned !

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Hello,

We recently received an email from this address regarding a support case.
However, this email address is not associated with a user in our system, so the update has not been applied to the case.

Please resend your update from an email address associated with your account or update the email address associated with your user in the system. If you do not have an associated user or need instructions on how to update your email address, please contact your Organizational Administrator.

If you wish to contact Red Hat, visit the Customer Portal at https://access.redhat.com for phone and web contact information appropriate to your region and support contract.

Thank you,

Red Hat Global Support Services

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I verified my email is ok vitaliy.feoktistov@limagrain.com

please correct this error as soon as possible

Kind regards,
Vitaliy