
Credit: Stephen Headrick / Android Authority
TL;DR
- Starting January 2027, Gmail will no longer support sending emails from third-party addresses (such as Yahoo, Outlook, or custom personal domains) via web or mobile apps.
- The change also eliminates Gmailify and web-based POP mail fetching. However, native Gmail mobile app multi-account support, Gmail-to-Gmail aliases, and Google Workspace “Send as” options will remain unaffected.
- Affected users must transition to desktop clients (e.g., Thunderbird, Outlook), dedicated email providers, or paid Workspace plans before 2027.
As Google continues refining its web client with features like BCC recipient warnings and custom ‘Help me write’ AI edits, it is also trimming down legacy capabilities. Starting in January 2027, Gmail will officially discontinue support for the “Send as” feature for third-party email addresses, meaning you will no longer be able to send emails from external services like Yahoo, Outlook, or custom domains through your primary Gmail web interface.
Google has updated its official Gmail Help documentation to outline the timeline: