macOS 26 (Tahoe) — Move the Mail “Send” arrow back to the left

With macOS 26 “Tahoe” Apple moved the Send arrow in Mail from the left side of the compose toolbar to the right. If you prefer the old layout you can restore the Send button to the left by customizing the Mail toolbar.

Quick summary

Right‑click (or Control‑click) the Mail toolbar, choose Customize Toolbar…, then drag the Send button/icon from the toolbar options back to the left where you want it. Click Done to save.

Step-by-step

1. Open Mail and start a new message (or open a compose window).
2. Right‑click (or Control‑click) the toolbar area at the top of the compose window.
3. Select Customize Toolbar… from the context menu.
4. In the customization palette, find the Send arrow/icon and drag it to the left side of the toolbar.
5. Click Done to confirm your changes.

More information

Guide and examples: How to get the Mail Send button back in macOS Tahoe

Apple Mail help: Apple Support — Send an email in Mail

Notes

This is a UI change in macOS 26 and can be reversed via toolbar customization — no third‑party tools required. If you have questions or prefer the new layout, share your thoughts on the tweet.