Using the New Outlook for Mac for personal email and calendar
I understand that a draft created for your Yahoo account in New Outlook for Mac does not appear in Outlook on your iPhone or iPad.
Please note that this is a user-to-user forum, so contributors can provide guidance based on publicly available support information but cannot change Outlook’s synchronization capabilities.
According to Microsoft’s current support article, cross-device draft syncing is documented for Microsoft 365 and Outlook.com accounts, with limited one-way syncing for some Gmail accounts. Yahoo accounts are not included among the supported account types listed for this feature. See the account types supported for draft syncing.
Therefore, the Yahoo draft may not synchronize between New Outlook for Mac and Outlook for iOS. As a practical alternative, you can continue editing the draft on the device where it was created or use Yahoo Mail on the web or in the Yahoo Mail app when you need to access the same draft from multiple devices.
I hope this clarifies the draft-syncing behavior you are experiencing.
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