SMS not working on Mojave

All right I was able to get the issue resolved! SMS messages now forward correctly to Mojave. For me, the secret was signing out of Messages on the Mac (Messages -> Preferences -> iMessage -> Sign Out) and on my iPhone (Settings -> Messages -> Send & Receive -> Apple ID: {email} -> Sign Out). After that, I signed back in, taking care to use the same email address everywhere. Technically I have a total of 3 different email addresses associated with iCloud, all with the same account, but you have to log in using the primary email address everywhere, and then it works. If you're not sure which is your primary email address, you can view it here: Sign in to iCloud - Apple.

The reason that it appeared that this problem began occurring on Mojave is because somehow my email address for Messages got changed to a different one. Maybe I messed that up when upgrading to an iPhone XS. In fact in hindsight, I'm not sure if the problem was upgrading to Mojave or getting a new iPhone. I did them both just a few days apart.

just noticed it, I didnt have it on older iOS, never had this ssue

on Mac it shows undeliverable when I send message, it does go through I can see it on my iPhone, but when person replies I dont see it on Mac, but I see it on iPhone

To add to my symptoms, I can send from the computers, but it shows as an error (not sent). Responses only go to phone. As well, I did notice today that some recent SMS were showing up in the message string (discussions that happened on the phone yesterday were appearing on the computer). That said, real-time comms with Green Bubblers are still not working correctly.

For whatever reason, my issue seemed to resolve today. I got several texts from an SMS friend, and my replies and the text string actually ended up being loaded on my MacBook Pro. It was behaving just like what has been described up until yesterday. I didn't do anything differently. Could it be that there was some back end issue on the servers that is now fixed? I am on AT&T

I’ve spent days on this for a friend.

Issue presented exactly as you described.

My friend switched from a Pixel to iPhone XS. He asked me to setup his MacBook to sync messages and allow him to text from computer. I updated to Mojave first, turned on SMS relay and landed in this mess.

I thought ok, clearly a messages.app issue. Created new account on computer. Logged in. Turned on SMS relay on phone. Issue persists.

Ok, OS issue. Backed up computer. Erased computer. Clean install of Mojave. New account. Issue persists. Found this forum.

Ok. Mojave final has a messages.app bug. Erased computer. Clean install of High Sierra. New account. Issue persists.

Ok, iCloud issue. Created brand new @icloud.com account. Removed old iCloud account from computer and phone. Issue persists.

Ok, phone OS issue. Erase all content and settings, setup up with the new iCloud account. Issue persists.

Ok I can’t downgrade an iPhone XS to iOS 11, so let’s try dev beta 12.1. Issue persists.

I’m left now with this being a Carrier/SMS aggregator issue? But how do you tell sprint they have to resolve something that only presents as an issue on a MacBook? They’ll say take it to Apple

Store.

Other details: Carrier is Sprint.

This phone number was once a google voice number and user used “google voice on sprint” so the sprint phone number hid behind GV number on android until sprint dropped GV integration. At that point, while still on Pixel/Android, user ported GV number to sprint because sprint killed GV integration earlier this year and that was the only way to maintain his GV number as his primary cell

phone number.

Did the rest of you happen to port a phone number between carriers recently, or was the Mojave upgrade the only thing that changed? It seems like it can’t truly be a Mojave issue if the issue exists on a clean install of high Sierra. Not to mention like I said this isn’t my line. My ATT phone (which was a number ported from Verizon in 2008) works just fine on multiple macs running Mojave and Messages.app with SMS relay.

I’m not one to give up trying things, but I’m at the “get a new phone number” stage, which of course is something the user would like to avoid.

So I’ll subscribe to this post and hope somebody figures something out.

:-/

I am AT&T, number was not ported. Cant imagine it is a carrier issue as several carriers are noted in this thread. While one has noted that their problem fixed itself today on its own, my symptoms remain the same.

Was able to get mine working on my Mac this morning, was having the same issues as everyone here. My discovery was that I had used the bata program on my iOS devices and not all where running the same version. My iPad had installed iOS 12.1 while my phone was running iOS 12. Once I disabled iMessage on my iPad, signed out of iCloud and resigned in on my Mac and Sycn'd all works fine now. I can send and receive to non iOS devices without issue again. Hope this helps.

I belive,that i was the only in the world, have an issue with iMessage, on Mojave?

Its not every day, the problem are there?

Last Saturday,d.29 of September,iMessage,not working, for 24 Hours,here,in little Denmark?

yesterday, there was not wrong,but will it last?

That issue,starting,Monday,d.24/9,when i downloadede MacOs Mojave!

Hoping,Apple will solve the problem, soon?

Seems to be something of which Apple is aware.

Sending SMS messages on an iPhone does not sync with a MacOS device. They just don't show up.

Sending SMS on the MacOS device seems to show up as a failure, yet displays on the iPhone correctly and appears to send.

I am also have the same problem on my watch - sending SMS appears to fail, but iPhone shows it sending and it appears to send.

(coincidence - handoff is not working for me either)

Exactly the same issue here -

Sending SMS messages on an iPhone does not sync with a MacOS device. They just don't show up.

Sending SMS on the MacOS device seems to show up as a failure, yet displays on the iPhone correctly and appears to send.

I am also have the same problem on my watch - sending SMS appears to fail, but iPhone shows it sending and it appears to send.

Same thing with handoff not working too

Hello gomoIId

He we go again,iMessage not working? Friday morning it was okay,and run smootly?

Before dinner,it vent down,and over the afternoon,and now,its still working?

iPhone,iPad Air,imac,and Macbook Pro,it,is the same! Red error,and "Text Message not send"

Hoping,for a respond from Apple,on this issue,or a opdate,will solve our problems?

Regards Claus.

Same here. Also, it's affecting my new Apple Watch. SMS sent from watch time out but are clearly sent from the phone. SMS responses are not being stored in the conversation on any iMessage device except for the phone.

Thanks! This did it for me... the second time I did it. I wish I could say exactly what process I did or how it was different the second time but I do know the second time I rebooted both devices while BT and WIFI were disabled. But even then my iOS device (iPhone XS) wouldn't register the phone number in settings>messages until I rebooted the phone a second time. Then everything came up just as expected and started working again.

Since upgrading to Mojave the messages app on my MacBook Pro 15 inch syncs with messages sent and received from my iPhone but I cannot send messages from my Mac. I get the red exclamation mark not delivered. I have hunted around lots of settings and logged out and back in to the phone, Mac and iCloud and still no joy. Can anyone help me please?

Hello david in CA.

There,are an,issue for the moment,sending on iMessage?

It started,when MacOS Mojave been,released?

I have trying all things,past the several weeks,to get my iMac,Macbbok Pro,iPhone,& ipad,

to send text message?

But i reseve the "Red Marke Text not Send",ewery time?

Its working,some times,of the day,and its going down over,the afternoon,like yesterday?

Hoping that Apple,can fixe the Problem for us in the next day,or so?

Maybe,in the next opdate,it will solve our problems? I hope!

Hilsen Claus.