Open the iOS settings app. Tap on Accounts & Passwords. Next, to know how to Sync Yahoo Mail Across Devices, press your finger on the Add Account. Tap on Yahoo. Enter your Yahoo mail address and password, and then tap Sign in. Enable syncing features for your mail account. At last, save the changes you made. In this way, you can easily get away from syncing techniques applicable to both Android and iPhone.
Fix Yahoo Sync Settings
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