How to: Edit Dovecot MSA Settings
=================================

The Message Submission Agent (MSA) works with the Mail Transfer Agent (MTA) to send outgoing mail over port 587
and 465.

.. note::

   As of InterWorx version 6.7.1, the Dovecot MSA is enabled by default on all new installations. Customers who installed
   InterWorx prior to version 6.7.1 can find information on how to convert to Dovecot (if needed) and enable the Dovecot
   MSA :doc:`here </nodeworx/mail_server/smtp/how-to-enable-sni-for-mail-over-port-587-and-465>`.

.. contents::

To Manage Dovecot MSA Settings
------------------------------

#. Log into NodeWorx from the browser (https://ip.ad.dr.ess:2443/nodeworx)
#. In NodeWorx, navigate to **System Services > Mail Server > MSA**
#. Under Dovecot Submission Server, update the desired fields: 

   - **Protocols**: Enables Dovecot submission server. Allows port 465 and 587 
   - **Custom Submission Port**: Allows the ability to define an alternate port to enable SMTP Submission Service on, 
     other than 587 and 465
   - **Custom Submission Port SSL**: If **Yes** is selected, the alternate SMTP Submission Service port will 
     require explicit SSL. If **No** is selected, the alternate port service will utilize STARTTLS for encryption, instead
   - **Max SMTP Connections Per User IP**: The number of SMTP connections allowed per IP

   .. image:: /images/dovecot-msa-settings.png
      :alt: dovecot msa settings 

#. Click **Update**