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.
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To have account user notified when reaching 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 use the respective drop-down menu.
System administrators can further edit the notification content in the Notification email content section. Edit the text displayed using 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
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Password Policy Enforcement
System administrators can define a Password Policy to be enforced for the currently created account. First of all, a minimum and maximum number of characters for each password can be set using the up and down arrows or directly editing the Password length parameters text field. Further select from the Password must include dropdown 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 the respective account. To do so 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
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To limit the size of email message attachments, check the respective option in the WebMail section and use the up and down arrow 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 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 either 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 arrows to select the desired size or editing the corresponding text field.
To set the HTML Body Filtering Level for this specific account 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
Remote POP Restrictions
System administrators can limit the number of remote POP accounts defined by a certain user. To do so, use the up and down arrows to select the desired size or edit the corresponding text field. Additionally, a minimum interval between two email retrievals for each RPOP connection can be specified. Use the Minimum message retrieval interval drop-down menu to have it calculated in seconds, minutes or hours.
Temporary Email Addresses Restrictions
The administrator can set some limits on the usage of temporary email addresses. A user may request maximum 16 temporary email addresses (aliases), if the limit is set to '0' the 'Add' button in WebMail (in the 'Temporary Email Addresses' section) will be disabled but old temporary email address will still be available until they expire or are deleted. The time period from the creation of a temporary email address to its automatic deletion can be set between 10 minutes and 1 year.
Parameter inheritance
Parameters or parameter groups that are inherited from the domain's account defaults are automatically marked with the
icon, while the ones inherited from an account class are marked with the 
icon. When explicitly setting the value of an inherited parameter it will be marked with the 
icon. Moreover, any further changes at parent level (domain's account defaults or account class) will only affect inherited parameters, while explicitly set ones will keep their value. You can, at any time, revert the explicit parameters to their inherited value, by clicking the 'Inherit' link related to the explicitly set parameter (orange) icon.
When you are done configuring these parameters, remember to hit the Save Configuration button to preserve your changes.