Restricting Message Size for Everyone Except a Select Few Users in MDaemon

Recently, one of our customers asked the following question:

“How do I restrict messages to 2MB for inbound and outbound mail – for all users except a small group of users?”

In MDaemon, this can be done via the Content Filter (located under the Security menu). Simply follow these easy steps:

  1. Add the users who will not be subject to the size restriction to a group via Accounts | Groups & Templates.
  2. Go to Security | Content Filter and create a new rule.
  3. In the left-hand “Conditions” column, check the box “If MESSAGE SIZE is greater than.”
  4. In the right-hand “Actions” column, check the box “DELETE the message”, and also check the box “Send a NOTE 1 to.”
  5. In the bottom section, click on the blue text “is greater than 10K” and enter a value in KB (2000 KB, for example), and then click OK.
  6. Click on the blue text “Specify Information” next to “and send note 1.”
  7. ┬áIn the new window, enter $SENDER$ in the To field, adjust the subject if desired, and enter a message in the main window, such as “Sorry, your message has exceeded the allowed size limit.”
  8. Click OK to save your progress.
  9. Give your new rule a name in the “Name this rule” field at the top, and click OK to save the rule.
  10. Now, we need to create a new rule to skip the size limit rule for members of the group we created in Step 1. Click on New Rule.
  11. Give your rule a name.
  12. In the left-hand “Conditions” column, check the boxes “If SENDER is a member of GROUP” and “If RECIPIENT is a member of GROUP.”
  13. In the box below, click on the blue “specific group name” text for each item, and select the group you created in Step 1. Do not change the word “or” to “and.”
  14. In the right-hand “Actions” column, check the box “SKIP the next ‘n’ rules.”
  15. Click the blue text “Specify Information” in the bottom section, and verify that it has “1” specified under “Skip over how many rules?”
  16. Click OK.
  17. Save your new rule.
  18. Back on the main Rules screen, highlight the last rule you created, and click the “Move up” button to move it above the size limit rule we created previously.
  19. Click OK to exit the content filter.
Here are screenshots of these rules:




























As a reminder, you can view our webinars and tutorial videos on our YouTube channel. Is there a topic you’d like to learn more about? Let us know in the comments section below!




New MDaemon Tutorials Added to YouTube

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.

These are just a few of the tutorial videos on our YouTube channel. Visit our YouTube channel for other tutorials, product overview videos, webinars, and more. If you haven’t tried MDaemon yet, click here to download your free trial and see how easy MDaemon is to use!