Q: iMessage don't send and receiver are "not registered"

Still not working, and no response from support.

Waiting, but this is starting to be annoying, because I used to send/recive a lot of messages at work day & do a lot of phone and FaceTime calls...

Same for me.  I tried new user, different AppleID, pulled prefs logged in and out numerous times on all devices. No luck. Messages (Yosemite)wont send, receive, forward or sync anything with other iOS Devices. Trying to place a call via Mac eventually fails. It takes many times before i can sign into facetime and messages. Facetime eventually works. I can make FaceTime calls no problem. Only Messages opens up with a blank window or the known Message window incl the persisting issue.

The continuity feature just became an incontinuity feature.

iMessages however is working fine on the iOS devices. That excludes issues with AppleID.

I ended up not using messages on my Mac anymore. Showstopper.

Tried different network. No luck. Same error message comes up though:

com.apple.xpc.launchd[1]: (com.apple.imdmessageservices.IMDMessageServicesAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.

I have the same error string in Console.

Reinstalled system. Connected from different network. No luck. Issue persists.

Here's a question: I saw a couple of mentions about running OS X under a VM. Anyone seeing this who isn't running under a VM?

I have this problem under OS X which is not under a VM, but I have always my VM opened (where I don't have messages enabled, just iCloud Mail)

Forgot to say, my VM runs Maverick.

So maybe server is freaking out having two logins on same hardware at the same time (and only 10.10.2 cares)?

It's possible, my girlfriend has the same issue and she runs Maverick VM too.

Now I enabled iMessage in the VM and it works, in the host still doesn't.

Maybe be try disable all iCloud functionality in the VM and see if that helps it on the host. I saw one user saying that it took a few days to come back.

Hi i have the same problème. On my Mac book pro Yosemite 10.10.2. I can´t send messages. This contact is not registred on iMessage. It Works well on my iPhone And iPad . But in MacBook not.

when i try to call with facetime from the Mac book pro, my iPhone And my iPad ring, but when i pick up the iphone or iPad , it terminales the call.

i Did a clean réinstall oy OS X Yosemite but no success.

my macbook is 2 Month only

i did everything enabled  disabled, créated a new account, disconnect icloud FaceTime iMessage from all my apple (iPhone iPad Mac book ) no success

i did everything that the usérs in that forum did but no success

please Apple fix that or gives the way to fix that. I do not Think it comes from my MacBook. or repay me. I will not waste my Time . Please fix that

Do you have a Virtual Machine installed?

No i do not have virtual machine. My Apple is a cléan install right now. No app, nothing only osx Yosemite . exactly like when You bye it for the first Time