==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.5-1
- Linux/BSD distribution name and version: CentOS 7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):  MySQL
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? Yes
- Related log if you're reporting an issue:
====

Hello,

We have a helpdesk system where it uses POP to retrieve messages from a specific mailbox (let's call it "sales" mailbox) and creates tickets, so the customer can reply back and forth via email with a ticket number associated with their question - As you know, a very standard feature used by almost all ticketing systems out there.

-> A visitor sends an email to sales@mydomain.com
-> Ticket system logs onto sales@mydomain.com mailbox, retrieves the message and creates a new ticket. If the message received has a ticket number associated with it, then the ticketing system retrieves the message and it simply appends it as a new message to the existing ticket
- The 'reply to' address on responses received by the visitor is always set to 'sales@mydomain.com'

The above works great *without* sub-addressing enabled on the ticketing system.

Now, we enable the *sub-addressing" feature within the ticketing system (we have to have this option enabled if we want to take advantage of a specific feature that they offer):

-> A visitor sends an email to sales@mydomain.com
-> Ticket system logs onto sales@mydomain.com mailbox, retrieves the message and creates a new ticket.
-> Agent replies back to visitor's ticket.
-> When visitor wants to reply back to the ticket, the 'reply to' address now has some random email address like  - sales+39383731313537@mydomain.com   (good, we know the subaddressing is working so far)
- > Visitor goes ahead and replies back to the ticket using the above random email address
-> No responses logged on the ticket.

To investigate further we log onto sales@mydomain.com mailbox and noticed a new folder called "39383731313537" and indeed the new message is sitting within that folder. However, the ticketing system knows nothing about that sub-folder because it only retrieves the messages from the default "Inbox" folder.

So, we are half way through with getting the sub-addressing working. we know iRedMail can support sub-address because it just received the above message without any bounce backs or anything.

However, how do I make it (if there is any way), so all emails received using sub-addressing also goes directly into the main "Inbox" folder instead of their own sub-folders?