To change an email accounts quota in Plesk, perform the following steps:

1 – Logged in to Plesk.
2 – Go Mail.
3 – Open Email Addresses tab.
4 – Select Email Address.
5 – Under Mailbox, select Unlimited or select Another size and enter size and choose the size unit.
6 – Click OK.

How To change an FTP account’s quota

How To change an FTP account’s quota

To change an FTP account’s quota, perform the following steps:

1 – Open cPanel (yourdomain/cpanel).
2 – Click on (FTP Accounts) from Files section.
3 – Click Change Quota for the FTP account for which you wish to change the quota.
4 – Enter the disk space quota, or select Unlimited.
5 – Click Change Quota.

How To Change an email Quota

How To Change an email Quota

To change a mail quota, perform the following steps:

1 – Open cPanel (yourdomain/cpanel).
2 – Click on (Email Accounts) from Email section.
3 – Click on Disk and Quota.
4 – Enter the new email quota, in Megabytes, in the appropriate text box. For an unlimited account, click unlimited.
5 – Click Save to store the new value.