Google is killing one of Gmail’s most useful power-user features

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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:

According to a dedicated support page detailing third-party email account support in Gmail, Google has to occasionally make a difficult choice to discontinue features that require disproportionate maintenance resources:

The “Send as” feature allows you to send emails from a different address you own, such as a work alias or a non-Gmail account like @hotmail.com, @yahoo.com, and others. However, starting January 2027, you will no longer be able to send mail from third-party email accounts in Gmail on the web or in the Gmail mobile apps on Android and iOS.

You will also no longer be able to add or sync third-party email accounts in Gmail on the web. However, Google is retaining this functionality in the Gmail mobile app, so you can at least check emails from your third-party accounts, even if you can’t send anything as an alias.

The deprecation also covers Gmailify, which lets you apply Gmail features like spam protection and inbox organization to your third-party email account, as well as web-based POP mail fetching.

Note that Gmail-to-Gmail aliases and Google Workspace “Send as” functionality are not affected by these changes.