User Connections

SmarterMail monitors users and displays the number of connections to the different protocols, including webmail, SMTP, IMAP, POP, XMPP, EAS, MAPI & EWS, and WebDAV. Domain and system administrators can use this section to drop a user's current connections if they believe too many connections are being made by a user on a particular protocol, resync the user's devices to clear up any potential conflicts or inaccuracies, or even enable/disable protocol access on the spot. It's a useful first stop when troubleshooting: a glance shows who is connected, over what, from where, and how heavily.

The page is organized into tabs: All, plus one tab per protocol — Webmail, SMTP, IMAP, POP, XMPP, EAS, MAPI & EWS, and WebDAV. Each tab's header displays two numbers: the total connections for that protocol and the total number of users on the domain. Note that the first number is total CONNECTIONS, not connecting users. So if the IMAP tab displays a "7", that means there are 7 total IMAP connections, which could be from 1 or more users — a single user with a phone, a laptop, and a desktop client easily accounts for several.

When viewing user connections, and depending on the tab being viewed, the following columns are available:

User - The account making the connection. Clicking a row opens the Authenticated IPs window for that user (see below).
Enabled - Whether the protocol being viewed is enabled for the user. A checkmark means the protocol is available for use by the user. (Shown on the protocol tabs, not the All tab.)
IP Connections - The number of connections for the user listed. Multiple connections can occur when a user is connecting to their account via email clients spread across multiple devices. By default, the list is sorted by this column, so the heaviest connectors float to the top.
Duration - The length of time the user has been connected. This column appears on the Webmail tab.
Last Login - The date and time the user last logged in using the protocol being viewed. (On the All tab, the protocol used is shown alongside.)
Last Authenticated IP - The last IP address used to authenticate the user.

The following buttons/actions are available, along with a search box for finding a specific user:

Refresh - Refreshes the list of connections and the counts on each tab. (The page does not refresh automatically.)
Actions (⋮) - Additional actions are available via this dropdown once one or more users are selected:

Drop Connections - Ends the selected user's connections for the protocol being viewed (or all protocols, from the All tab). Note that if you drop your own webmail session, you'll be logged out too.
Resync Devices - Forces the selected user's data to be pushed from the server to all of their connected devices. A confirmation appears first, as the operation can take a significant amount of time and should only be performed when necessary. Up to 25 users can be resynced at a time.
Enable [Protocol] Access / Disable [Protocol] Access - When viewing a particular protocol tab (e.g., IMAP), these enable or disable that protocol for the selected user(s). (On the SMTP tab, the options are Enable/Disable Inbound SMTP Access.) Disabling a protocol also drops the user's existing connections on it — handy when, say, a compromised account needs its client access cut off immediately.
Modify Protocol Access - When viewing the All tab, this opens a window with an on/off toggle for every protocol — Webmail, SMTP, IMAP, POP, XMPP, EAS, MAPI & EWS, and WebDAV — used for granting or removing specific protocol access for several users at a time. Note the warning on the window: the toggles are applied, exactly as set, to ALL selected users.
View Authenticated IPs - Opens a window that shows all IP addresses that have authenticated for the selected account, including geolocation information where available and the last login date and protocol for each IP. This is particularly useful for spotting suspicious activity: a login from an unexpected country stands out immediately. (This action works on a single selected user, and can also be opened by simply clicking the user's row.)

Regarding connections that appear to last longer than they should, this could be due to a number of reasons. For example, SMTP connections that stay active for hours could be due to multiple people connecting from behind a firewall. These people all appear to connect from a single IP, but they're actually individual connections, one for each user. The firewall simply portrays the connections as being from a single source. In addition, some numbers may always show up as 0. For example, the MAPI & EWS tab will only show connections when users connecting via those protocols are actually pulling or pushing a sync. MAPI and EWS don't IDLE like EAS or IMAP, so the numbers will fluctuate or possibly show 0 — that's normal, not a sign that Outlook is disconnected.