The “Domains and mailboxes” module is located in the “Mail” menu. This module is designed for assigning and working with mail domains and mailboxes of the ICS CUBE. When you open the “Domains and mailboxes” module, the main window displays mail domains, mail domains with redirection, mailboxes, links to mailboxes; and the following is displayed for mailboxes: users, quotas, and the current mailbox size. This module also contains a search bar and function buttons (add, delete, disable, edit, clear, resend, upload emails to mailbox, download emails from mailbox).
In order for the mail domain to be accessible from an external network and be able to exchange data with other mail servers, DNS-records must be configured.
Once user mailboxes are created, they can connect to the ICS CUBE using email clients (for example, Mozilla Thunderbird or Microsoft Outlook) or use the web-interface for mail. Please note that when creating mail domains and mailboxes, the corresponding domains and accounts appear in the jabber server section. The opposite is also true.
To add a mail domain, click “Add ” - “Mail domain”. A dialog box will open where you will be asked to enter “Domain name” (required parameter) and “Joint email” (optional parameter). The domain name can be any non-existent name if the email exchange will take place within the corporate network, or a valid domain name. You can specify a joint email only after it is created (see below). Emails will be sent to this mailbox if the mailbox non-existing in the domain is specified in the email.
If the “Add DKIM-signature” flag is set in the Mail settings, it will be added automatically to the domain. If you need to copy the DKIM-signature, select the domain and click “Edit” or open the edit form in the main window by double-clicking on the domain name.
To delete a mail domain, select it and click “Delete”. All mailboxes and links to mailboxes located in this domain will be deleted.
To add a mailbox, click “Add” - “Mailbox”. A dialog box will open where you will be asked to enter: mailbox name; password; select the user to whom this mailbox will be assigned; select the domain name to which this mailbox will be assigned, or enter a new domain. Password can be generated automatically by clicking on the button in the right side of the field. If necessary, in this dialog box, you can set the “Quota” flag and specify the quota - the maximum reserved space on the ICS CUBE hard drive for storing messages for this mailbox. If this quota is exceeded, emails will not be accepted. There is no quota by default.
Mailboxes can also be viewed in the “Mail and telephony” tab in the module for each user:
To add a mailbox shortcut, click “Add” - “Mailbox shortcut”. A dialog box will open where you will be asked to enter: mailbox name, domain name for this mailbox, and select an existing mailbox to which all incoming messages will be redirected.
The ICS CUBE mail server can act as a mail gateway (relay) for connecting logically separated networks. The mail gateway ICS CUBE, working as a mail relay, also checks messages passing through it for viruses and spam (subject to the appropriate settings). To do this, use the “Mail domain with forwarding”.
To add a mail domain with redirection, click “Add” - “Mail domain with forwarding”. A dialog box will open where you will be asked to enter the domain name on the ICS CUBE and the host name where incoming emails will be redirected.
If you need to delete all or part of the emails from one mailbox, select the mailbox and click “Clear”. A dialog box will open where you will be asked to select “All messages” to delete, or select “Messages by period” and specify the period.
If you need to forward all or part of emails from one mailbox to another, select the mailbox that you want to forward emails from and click “Resend”. A dialog box will open where you will be asked to select “All messages” for forwarding, or select “Messages by period” and specify the period. You will also need to select an existing mailbox on the ICS CUBE where the emails will be forwarded.
To download all the contents of the mailbox in Roundcube format, select the mailbox and click “Download emails from mailbox”. When uploading, you need to select a mailbox, click “Upload emails to mailbox” and select the pre-created Roundcube archive.
Important: when uploading to the archive mailbox, all emails contained in this mailbox will be deleted.