CSS property · data last changed 10 Nov 2026
[target] in email clients
Works in none of the 21. Not supported in Gmail, Gmail Android, Gmail iOS and 9 more. Partial in Outlook Classic, Outlook iOS, Outlook Android and 5 more. Untested in Superhuman.
Safe to leave in: where it is not supported, the email renders the same.
caniemail (MIT) via @emailens/engine 0.18.22
What to do instead in Outlook Classic
- The attribute is supported but links always open in a new window anyway.
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[target] is not among the 24 features we have screenshotted on real installs. The ones we have →
All 21 clients, problems first
| Client | Support |
|---|---|
| Gmail | Not supported See caveat 1 |
| Gmail Android | Not supported See caveat 1 |
| Gmail iOS | Not supported See caveat 1 |
| Outlook 365 | Not supported See caveat 1 |
| Outlook (New) | Not supported See caveat 1 |
| Yahoo Mail | Not supported See caveat 1 |
| Yahoo Mail Android | Not supported See caveat 1 |
| Yahoo Mail iOS | Not supported See caveat 1 |
| HEY Mail | Not supported See caveat 1 |
| Proton Mail | Not supported See caveat 1 |
| AOL Mail | Not supported See caveat 1 |
| Fastmail | Not supported See caveat 1 |
| Outlook Classic | Partial See caveat 2 |
| Outlook iOS | Partial See caveat 2 |
| Outlook Android | Partial See caveat 2 |
| Outlook for Mac | Partial See caveat 2 |
| Apple Mail | Partial See caveat 2 |
| Apple Mail iOS | Partial See caveat 2 |
| Samsung Mail | Partial See caveat 2 |
| Thunderbird | Partial See caveat 2 |
| Superhuman | Untested |
Caveats (2)
- 1. Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, HEY Mail, Proton Mail, AOL Mail, Fastmail: Not supported.
target="_blank"is forced on all links. - 2. Outlook Classic, Outlook iOS, Outlook Android, Outlook for Mac, Apple Mail, Apple Mail iOS, Samsung Mail, Thunderbird: The attribute is supported but links always open in a new window anyway.
Caveats as recorded by caniemail (MIT), one entry per wording.
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