The Quotas and Restrictions subpage contains parameters relative to mailbox and folder level, notifications to be sent to account users and restrictions imposed at domain level for all created accounts.

Managing Account Quotas

At mailbox level, the total mailbox size, the total number of folders and the total number of messages can be limited by selecting the respective options in the Mailbox area and using the up and down arrows to adjust the limits to the desired value. For the total size limit, use the available drop-down menu to select if you want it calculated in KB, MB or GB.

At folder level, system administrators can set limits for the size of each folder and the total number of messages per each folder by checking the respective options in the Folders section and using the up and down arrows to adjust the limits to the desired value. For the folder size limit, use the available drop-down menu to select if you want it calculated in KB, MB or GB.


To have account users notified when they reach a certain level of their allowed quota through a pop-up displayed when accessing the WebMail interface, check the respective option in the Notifications section and use the up and down arrows to increase or decrease the default percentage of the quota. When this option is checked, the users are also notified at every login. You can set the frequency of these login notifications using the up and down arrows corresponding to this additional option. To select if the respective value is calculated in seconds, minutes, hours or days, check the respective drop-down menu.

System administrators can further edit the content of the notification in the Notification email content section. To edit the text displayed, use the Subject and Body text fields. To insert more values in the email body, use the available buttons - Domain, Account, Full name, Notification threshold percentage, Size quota, Size used, Size used (%), Count Quota, Count Used, Count Used (%).

Configuring Restrictions

Password Policy Enforcement
System administrators can define a Password Policy to be enforced when an account is created for a respective domain. First of all, they can set a minimum and maximum number of characters for each password, using the up and down arrows or editing directly the text field of the Password length parameters. They can further select from the Password must include drop-down menu if passwords should include letters, letters and numbers or letters, numbers and special characters.

Session restrictions
The number of POP3, IMAP and WebMail sessions can be limited for all accounts of a certain domain. To select the desired value, use the up and down arrows or directly edit the text fields pertaining to each type of session. POP3 and IMAP sessions take values from 1 to 16, while WebMail sessions take values from 1 to 2048.

WebMail Restrictions

To limit the size of email message attachments, check the respective option in the WebMail section and use the up and down arrows to select the desired size. To have the size measured in KB, MB or GB, use the available drop-down menu.

Use the up and down arrows of the Limit number of attachments per message option or edit its corresponding text field to set a maximum number of attachments allowed to email messages sent or received from any account using the WebMail interface

Check the Limit message size option to set a maximum size for sent and received messages through the WebMail interface. To do so, use the up and down arrows to select the desired size or edit the corresponding text field.

The Limit number of recipients option allows you to configure a maximum number of recipients for WebMail email messages using the up and down arrow to select the desired size or editing the corresponding text field.

To set the HTML Body Filtering Level for all domain accounts when connected via WebMail, use the available slider. The HTML filtering levels stand for the following:

• No Filtering
  
• Low level filtering -  converts the message to standard XHTML
  
• Medium level filtering - generates the email body based on a list of known/allowed attributes and tags. Anything that is not on this 'allowed list' is removed. This level removes java script, styles, etc.
• High level filtering - generates the email body based only on text components. This means that only plain text components remain in the message. This forth level is the strictest and may actually damage some formatting, but it is also the safest.

Message Sending Restrictions

Limits imposed to sent messages offer system administrators an easy possibility to prevent account users from generating spam. They can thus set a maximum number of messages, their total size and the period in which these are sent using the up and down arrows to select the desired size or editing the corresponding text field. To have message size calculated in KB, GB or MB, use the respective dropdown menu. The time frame for the maximum number of messages can be set to be calculated in seconds, minutes, and hours, using the corresponding dropdown menu.

Remote POP Restrictions

System administrators can limit the number of remote POP accounts defined by account users. To do so, use the up and down arrows to select the desired size or edit the corresponding text field. Additionally, you can specify a minimum interval between two email retrievals for each RPOP connection. Use the Minimum message retrieval interval drop-down menu to have it calculated in seconds, minutes or hours.

Temporary Email Addresses Restrictions

When you are done configuring these parameters, remember to hit the Save Configuration button to preserve your changes.