This help section describes Plus Addressing and the related settings available under the page in the navigation.
Plus addressing, aka. subaddressing or detailed adressing, is a useful feature that allows recipients to organize incoming emails and to prevent websites from storing the real email address when filling in sign up forms. It can be used to create receive-only email addresses by adding a "plus tag" (a delimiter character and a suffix) to the local-part of the email address (i.e. [email protected]). Mail servers that support this feature can automatically redirect emails to the recipient's mailbox into the specified folder based on the plus tag, or the recipient can use automatic email rules to move the email to a separate folder.
Exchange Server does not yet support plus addressing, but until this changes, administrators can add "plus tagged" email addresses to existing mailboxes (aka. aliases), and/or create transport rules to ensure delivery. If necessary, ORF can be configured to remove plus tags from the recipient addresses of incoming emails (See: Plus Addressing Settings).
Click the Settings button to configure the Plus Addressing feature of ORF. More information is available in the Plus Addressing Settings section.
Use this list to create filtering expressions to manage plus tags in recipient addresses.
Click the New button to add a new expression to the list. To modify an existing expression, click Modify or hit Enter. Expressions can be deleted using the Delete button or the Delete key.
Click the column header of any column by which you wish to sort the expression list. To reverse sorting, click the column header again.
Right-click on the expression list and select "Import List..." or "Export List...". Alternatively, you can do this from the menu, select or .
Right-click on the list item or items and select "Search in logs..." to find log records that match the defined expression. Logs need to be loaded in the Log Viewer beforehand.
Please see the Plus Addressing Expression topic for details.
Consult the technical specification of this functionality at https://datatracker.ietf.org/doc/rfc5233/.