Engadget iconEngadgetSep 13, 2026

How to fix iMessage "Not Delivered" error on iPhones

iMessage is simple, and even RCS and SMS are usually reliable. When your iPhone won't sent a message, you can coax it into working again.

How to fix iMessage "Not Delivered" error on iPhones

Share this story

Send the public story page.

Useful takeaways from this story.

iMessage is simple, and even RCS and SMS are usually reliable.

When your iPhone won't sent a message, you can coax it into working again.

iMessage is simple, and even RCS and SMS are usually reliable. But when your iPhone won't sent a message, you can coax it into working again.

Building the complete brief

The page is ready to read now. The fuller skim-friendly version will appear here automatically.

The useful part

iMessage is simple, and even RCS and SMS are usually reliable. When your iPhone won't sent a message, you can coax it into working again.

How it works

  • When your iPhone won't sent a message, you can coax it into working again.

Details worth keeping

iMessage is simple, and even RCS and SMS are usually reliable.

Keep reading in the app

Open the app view to save this story, compare related coverage, and continue from the same source.

Open in app