MDaemon’s webmail client is loaded with a variety of features for organization, collaboration and security. As a daily user of MDaemon Webmail (I use it almost exclusively instead of my desktop email client), I like to keep important messages organized so I can find them later. This is made easy with message categories (in addition to follow-up flags). Within the MDaemon webmail client, you’ll find a variety of built-in categories, or you can create your own custom categories. Multiple categories can be assigned to a message, and messages can be arranged by category, keeping all of your important messages in one, easy-to-find place.
If you’re like me, you like shortcuts that make life easier when performing common tasks. For example, if you work in finance or accounting, wouldn’t it be nice to be able to pull up all emails with the word “invoice” with a single mouse click? Well now you can. With the latest release of MDaemon, we introduced search folders in MDaemon Webmail. This week’s 30-Second Email Tips video will walk you through the setup process.
Search folders were added in MDaemon 17.5.1. If you’re running an older version of MDaemon, you could be missing out on some great new features!
Has this happened to you? Let’s say you’re the MDaemon administrator for your company, and you’ve noticed that somewhere, somehow, spam messages are being sent from within your network. Perhaps one of your PCs has been compromised. What do you do? Here are some tips to help you track the issue down.
First, make sure you have the option “Authentication is always required when mail is from local accounts” enabled (Security | Security Settings | SMTP Authentication). Also enable “Credentials used must match those of the return-path address” and “Credentials used must match those of the From header address.” Then, make sure “…unless message is sent to a local account” is unchecked to prevent intra-domain spam (between local domain users).
Next, find out if the spam messages are coming in from an authenticated session. To do this, locate one of the spam messages & open it up in Notepad to view its headers (or you can open it in Queue & Statistics Manager). Does the message have an X-Authenticated-Sender header? It will look something like this:
If this header is present, then that is the user who authenticated to send the message. The first thing you should do in this case is to change the account’s password via the Accounts menu in MDaemon. Even if the spamming is going through the user’s mail client, until you give the user the new password and they update their mail client the authentication credentials will be rejected and the spamming will be temporarily stopped.
In newer versions of MDaemon, we’ve added Account Hijack Detection, which will automatically disable an account if it sends a specified number of outbound messages via an authenticated session in a given period of time. We recommend enabling this feature. In MDaemon, it’s located under Security | Security Settings | Screening | Hijack Detection.
The next step is to look at the Received headers. Find the one where the message was received by your server. Here is an example of what this header would look like:
Received from computer1 (email@example.com (22.214.171.124) by example.com (MDaemon PRO v17) with ESMTP id md50000000001.msg for <UserWhoWasSpammed@example.com >, Fri, 13 Sep 2016 21:00:00 -0800
Find the connecting IP (126.96.36.199) in the above example. This is the machine that is sending out spam. Locate that machine to deal directly with the spambot on that machine.
If the message wasn’t authenticated or wasn’t sent from your local network, locate the Message-ID header and copy that value.
Then open the MDaemon SMTP-IN log that covers the time when that message was received by MDaemon (based on the timestamp in the received header) and search for that Message-ID in the log (in the 250 response line when the message is accepted):
If you haven’t seen our YouTube channel lately, you’re missing out on some valuable information that can be used to help you manage MDaemon and SecurityGateway. Recently, we’ve added several new MDaemon tutorial videos. Here are a few that might interest you.
MDaemon Graphical User Interface (GUI) Overview
In this video, we provide a tour of MDaemon’s graphical user interface. We show you where to find key security, administration, and account management settings, how to navigate your way through the mail queues, and how to find information in the mail routing, security and spam filter logs using the tabs across the bottom of the MDaemon interface.
MDaemon’s File Structure
One of the benefits of MDaemon that make it easy to troubleshoot and administer is its file structure. All key settings are stored in configuration files located in the MDaemon/App directory, and user email messages are stored in the Users directory. This flat-file structure makes MDaemon very easy to backup and restore using simple drag & drop.
How to Enable and Use Two-Factor Authentication in WorldClient
Two-factor authentication is a security feature found in WorldClient, MDaemon’s webmail client, which requires users to submit two forms of identifying data – a password, and a special code or token, before they are able to login. Two-factor authentication helps prevent accounts from being hijacked by someone who manages to guess the account’s password. A potential hacker would have to know the second authenticating factor in order to access the account.
Enabling Do Not Disturb to Establish Work/Life Balance for Employees
MDaemon’s Do-Not-Disturb feature allows administrators to set a time during which certain users are not allowed to check for or send new email messages. In an age where we’re all constantly connected via mobile devices, this helps foster better work-life balance for your users.
In a previous video and blog post, I demonstrated how to maintain data privacy by encrypting email messages in WorldClient (MDaemon’s webmail client) using Virtru. However, this easy-to-use client-side email encryption feature does more than just email encryption. When you use Virtru Pro, you can set a message expiration period, revoke sent messages, or disable forwarding. In today’s video tutorial, I show you how to set a message expiration using WorldClient and Virtru.