Hi! I understand the Fastmail app is working fine on your iPhone but not on your wife’s iPhone. Let’s figure this out together. To start, could you tell me more about what exactly happens when she tries to open or use the app? For example, does it crash, freeze, show a blank screen, or fail to log in?

Meanwhile, here are some common troubleshooting steps that often help with Fastmail app issues on iPhone:

1. Restart the iPhone: Sometimes a simple restart can clear out temporary glitches.

2. Update the Fastmail app and iOS: Make sure both the app and the iPhone’s iOS are updated to the latest versions.

3. Force Quit and Relaunch the App: Swipe up from the bottom (or double press home button), find the Fastmail app, and swipe it up to close it, then reopen.

4. Check Network Connection: Confirm the phone has a stable internet connection, preferably on Wi-Fi, as mobile data can sometimes cause issues with the app.

5. Background App Refresh: Go to Settings > Fastmail and ensure Background App Refresh is enabled so the app can update its content.

6. Re-login: You may try logging out and back into the app on her device.

7. Clear Cache / Reinstall: You can uninstall the app, restart the phone, then reinstall it from the App Store.

If you’ve already tried some of these, please let me know which ones so we don’t repeat them. Also, did this problem start after a specific update of iOS or the Fastmail app?

With a bit more info about the app behavior on her iPhone, I can guide you more precisely. Looking forward to your reply!

Thank you I deleted app and reloaded it. That worked. The other points did not seem to do anything

Thanks for letting me know the reinstall worked—that’s great to hear! Deleting and reinstalling the Fastmail app often resolves app-specific bugs or corrupted data on the device, so that’s a solid fix.

Since you’ve done the reinstall, here are a couple of additional tips to keep the app running smoothly on your wife’s iPhone:

1. Keep iOS and Fastmail App Updated: Make sure both the iPhone’s system software (iOS) and the Fastmail app stay updated. Sometimes app updates fix bugs that could cause issues.

2. Check for App Permissions: Sometimes apps need permissions like access to background refresh or notifications. You can check this in the iPhone’s Settings under the Fastmail app’s permissions.

3. Monitor Network Connection: A steady Wi-Fi or good cellular connection helps the app sync emails properly.

If the app starts misbehaving again, deleting and reinstalling it often helps other users too, as I’ve seen in community feedback3.

If you notice any other problems or have questions, feel free to ask! Are you satisfied with this guidance?