While accessing email account from Webmail, I was getting the error as -
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Internal Server Error - User is over quota
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Internal Server Error - User is over quota
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Solution -
1. Find the cached quota file on this path grep -HnR '' /var/cpanel/overquota | sort
If you will find the cached file then remove it using below command -
rm -f whole output of above command
2. Fire - /scripts/fixquotas
It fixed my issue!