HTML element · data last changed 10 Nov 2026
<blockquote> in email clients
Works in 19 of 21. Partial in HEY Mail. Untested in Superhuman.
Your reader in HEY Mail may not see <blockquote> the way you wrote it, even if it looks right where you tested it.
caniemail (MIT) via @emailens/engine 0.18.22
What to do instead in HEY Mail
- Buggy. Blockquote elements are nested in a
<details>element.
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<blockquote> is not among the 24 features we have screenshotted on real installs. The ones we have →
All 21 clients, problems first
| Client | Support |
|---|---|
| HEY Mail | Partial See caveat 1 |
| Superhuman | Untested |
Works in 19: Gmail, Gmail Android, Gmail iOS and 16 more. Show all
| Client | Support |
|---|---|
| Gmail | Works |
| Gmail Android | Works |
| Gmail iOS | Works |
| Outlook 365 | Works |
| Outlook (New) | Works |
| Outlook Classic | Works |
| Outlook iOS | Works |
| Outlook Android | Works |
| Outlook for Mac | Works |
| Apple Mail | Works |
| Apple Mail iOS | Works |
| Yahoo Mail | Works |
| Yahoo Mail Android | Works |
| Yahoo Mail iOS | Works |
| Samsung Mail | Works |
| Thunderbird | Works |
| Proton Mail | Works |
| AOL Mail | Works |
| Fastmail | Works |
Caveats (1)
- 1. HEY Mail: Buggy. Blockquote elements are nested in a
<details>element.
Caveats as recorded by caniemail (MIT), one entry per wording.
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