Once you see the Not Delivered error message, the recipient will not be able to send you any responses.Īt the time of this writing, there’s no fix available for the issue that always works. But as you may have guessed, there’s one more problem associated with the Not Delivered error. If that was the extent of the issue, you could probably live with it and wait for a fix in one of the subsequent Mojave updates. (Logging out and back into iCloud may correct the SMS delivery error.)

Turns out your message was sent, and likely received, without any problems. While the error message is a bit vexing, it gets stranger. Once you send such a message, you may see a “Not Delivered” error message. If you use the Messages app on the Mac to send SMS messages, you may notice a strange timeout error occurring when you send an SMS message to a non-Apple device. Either way, here’s our newest guide to what broke and how to fix it in macOS Mojave.

That may be due to a more rigorous beta cycle, or maybe we just haven’t had enough time to uncover all the possible problems.

Three Months of Mojave: What Works, and What Still Doesn’t.

macOS 101: What High Sierra Broke and How to Fix It.

What Sierra Broke, How to Fix it & Where to File Bug Reports.

With macOS Mojave, we appear to be seeing a smaller crop of issues than we saw in our previous “what broke” guides: Having issues with Mojave? Seems like it’s a rite of passage to install a new version of the macOS, and then uncover issues we didn’t see in the beta version.

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