Skip navigation

How do I block iMessage on a Network?

6328 Views 7 Replies Latest reply: Sep 30, 2013 1:16 PM by gyrhead RSS
godona Calculating status...
Currently Being Moderated
May 19, 2012 2:40 AM

I work in a secondary school in Victoria, and we are keen on blocking iMessage and Facetime while connected to the school network.  In our context, students own their individual devices and hence we do not want to lock down the individual devices.  However, we want to be able to block the appropriate connections such that iMessage would be disabled while at school.


My greatest concern is that blocking the ports outright would cause all sorts of other problems with other browsing and network functions.  Any suggestions would be welcomed.

iPad 2 Wi-Fi
  • gyrhead Level 3 Level 3 (785 points)
    Currently Being Moderated
    May 21, 2012 4:10 AM (in response to godona)

    You can block Facetime by turninig it off in the Restrictions setting.  iMessage cannot be restricted this way and blocking it on the firewall may cause issues with apps the use APNS, iCloud, etc.. proceed at your own risk.....

  • MessagingTech Level 1 Level 1 (40 points)
    Currently Being Moderated
    May 21, 2012 7:38 AM (in response to godona)

    Looking at our firewall logs and doing some tests iMessage is going out over port 80 to Apple.  If you were to block this like guyhead said, you'll likely block other services or apps from working on the device.  I don't really see a way to block iMessage as the students could switch to 3G if the devices support it and still use it.  Looking in our MDM solution, doesn't provide an option to restrict access to it either.

  • gyrhead Level 3 Level 3 (785 points)
    Currently Being Moderated
    May 21, 2012 8:10 AM (in response to MessagingTech)



    iMessage uses 80, 443, and 5223.  Obviously you cannot block 80 and 443 but 5223 might cripple it without too collateral damage. Below are listed some other services Apple has on 5223:







    XMPP over SSL, Apple Push Notification Service






    MobileMe (Automatic sync notifications) (see note 9), APNs, FaceTime, Game Center

  • captrams Calculating status...
    Currently Being Moderated
    Sep 30, 2013 7:18 AM (in response to godona)


    Did you ever have any luck blocking your students to Imessage. We had been doing this with our MDM but after IOS 7 we are seeing students using it again. I am attempting to block it via our firewall with no luck as it appears to work just fine using 443. Just wondering if you had found a solution and if it was still working for you after the release of IOS 7.

  • gyrhead Level 3 Level 3 (785 points)
    Currently Being Moderated
    Sep 30, 2013 1:16 PM (in response to captrams)

    Supervise the IOS 7 iPads with Configurator 1.4 and you can disable iMessage in the configurator settings.

    If the device is supervised most MDM solutions allow for disabling iMessage as well.


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.