Subject: Undelivered Mail Returned to Sender
From: [email-masked] (Mail Delivery System)
To: [email-masked]
Date: Thu, 27 Oct 2022 04:00:31 +0200 (CEST)

This is the mail system at host hermes.cegesoma.be.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<[email-masked]>: can't create user output file. Command output:
    procmail: Couldn't chdir to "/CEGESOMA/users/lieven.saerens//maildir"
    procmail: Unable to treat as directory
    "/CEGESOMA/users/lieven.saerens//maildir" procmail: Lock failure on
    "/CEGESOMA/users/lieven.saerens//maildir.lock" procmail: Error while
    writing to "/CEGESOMA/users/lieven.saerens//maildir" procmail: Error while
    writing to "/var/mail/lieven.saerens"