How to: Edit POP and IMAP Settings using Courier
================================================

The Mail Delivery Agent (MDA) is responsible for delivering email messages to the recipient inboxes on the server. 

From the MDA page in NodeWorx, server administrators may manage the IMAP and POP3 services, including editing the 
connection and memory limits.

.. note::

   As of InterWorx version 6.3.0, all new installations of InterWorx use Dovecot for MDA services. Customers who 
   installed InterWorx after version 6.3.0, or who converted an existing server's MDA services to Dovecot, should 
   refer to :doc:`the MDA documentation for Dovecot </nodeworx/mail_server/pop3_imap/how-to-edit-pop3-and-imap-settings-using-dovecot>` 
   for information on managing IMAP and POP3.

.. contents::

To Manage the POP3 and Secure POP3 Services
-------------------------------------------

Checking POP3 and Secure POP3 Status
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Mail Server Control[POP3], the POP3 Status and POP3 Secure Status bars indicate the current status of 
   the services

   - It is also possible to control the status of the service from this interface:

      - **Play** starts the service
      - **Arrow** restarts/refreshes the service
      - **Stop** stops the service

.. image:: /images/mda-pop-3-status-courier.png
   :alt: pop3 status 

Setting POP3 and Secure POP3 Start-On-Boot Options 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Mail Server Control [POP3], select either **Yes** or **No** from the Start on Boot-up dropdowns 
#. Click **Update**

To Edit Settings for POP3 and Secure POP3
-----------------------------------------

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Server Information [POP3], update the desired fields. There are two options for each POP3 service:

   - **Memory Limit**: The amount of memory, in bytes, that the POP3 or POP3 Secure service may use
   - **Connections**: There number of POP3 or Secure POP3 connections that are allowed.

   .. image:: /images/mda-pop3-settings-courier.png
      :alt: pop3 settings 

#. Click **Update**

To Manage the IMAP and Secure IMAP Services
-------------------------------------------

Checking IMAP and Secure IMAP Status
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Mail Server Control [IMAP], the IMAP Status and IMAP Secure Status bars indicate the current status of 
   the services

   - It is also possible to control the status of the service from this interface:

      - **Play** starts the service
      - **Arrow** restarts/refreshes the service
      - **Stop** stops the service

.. image:: /images/mda-imap-status-courier.png
   :alt: imap status

Setting IMAP and Secure IMAP Start-On-Boot Options 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Mail Server Control [IMAP], select either **Yes** or **No** from the Start on Boot-up dropdowns 
#. Click **Update**

To Edit Settings for IMAP and Secure IMAP
-----------------------------------------

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MDA Settings**
#. Under MDA Server Information [IMAP], update the desired fields. There are two options for each IMAP service:

   - **Memory Limit**: The amount of memory, in bytes, that the IMAP or IMAP Secure service may use
   - **Connections**: There number of IMAP or Secure IMAP connections that are allowed.

   .. image:: /images/mda-imap-settings-courier.png 
      :alt: imap settings

#. Click **Update**