Forwarding, a one-time import, and adding an account to the Gmail app solve different problems. Decide whether you want future copies in one mailbox, historical data transferred, or convenient access to several independent accounts. None of those choices automatically completes the others.
Choose forwarding for new incoming copies
Forwarding is configured at the source provider and sends eligible new messages to another destination. The source’s verification, Spam handling, copy-retention choices, and organization policy matter.
It is not a historical archive transfer. Confirm the route with harmless new mail and retain source access until you understand the result.
Choose import for a bounded historical transfer
Google’s current deprecation FAQ says supported one-time mail and contact imports remain available on Gmail’s web interface. It explicitly distinguishes them from continuous synchronization.
Keep the source account and a verified preservation copy until the import is checked. Folder structures, labels, contacts, and message coverage may not transfer identically. Do not assume that completing an import updates sign-ins at unrelated services.
Choose the app for separate-account access
The Gmail mobile app can connect to supported non-Google providers using their supported account flow and IMAP. All inboxes is a combined view; it does not move every provider’s email into your @gmail.com web mailbox.
- Identify the ongoing account and provider you will keep.
- Choose a method for historical mail separately from future delivery.
- Test sending, receiving, and replies.
- Review old routes to avoid duplicate delivery.
Google’s scheduled retirement of Gmailify and Gmail’s third-party POP fetching changes some legacy arrangements. Reading Gmail itself from an external POP or IMAP client is a different direction of access and is not the same retirement.
Do not start a new workflow from outdated instructions that recommend disabling security or relying on a retiring continuous-fetch feature. Use the current official notice and the other provider’s documentation. Preserve account ownership, local drafts, and approved retention before removing any old connection.
Browse Gmail & Google Account help
References
- Learn about upcoming changes to Gmailify & POP in Gmail
- Automatically forward Gmail messages to another account
- Add another email account on your computer
- Add another email account in the Gmail app
Reviewed against the linked product guidance, standards, and identified vendor or public-authority guidance on October 29, 2026. Available options and screen labels can vary by account, device, region, and organization policy.