New feature for version 3.4
You can use the Related Mails field to display related emails in the list of records. Field settings allow you to specify the format for displaying related emails.
Please note that the data from the field is displayed only in the list of records. Record filters are also provided, for example, you can filter records that have unread letters.
By clicking on the number of emails, you can view all related emails for the selected entry and create a new email.