If after opening the app, e-mails won't open for a long tome, you could try doing the folowing steps:
- Close the app
- Got o your phones settings
- Open apps
- Find Inbox app
- Open Storage
- And press clear cache
Don't be affraid as the "clear cache" oparation doesn't delete any e-mails or necessary files.
Note. Your settings may differ due to differing android version or manufacturer.
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