CSS property · data last changed 10 Nov 2026
min-height in email clients
Works in 19 of 21. Not supported in Outlook Classic and Proton Mail.
Your reader in Outlook Classic sees the email without min-height, even if it looks right where you tested it.
caniemail (MIT) via @emailens/engine 0.18.22
What to do instead in Outlook Classic
Use a fixed height or spacer instead of min-height
<!-- Outlook ignores min-height. Use height or a spacer image. -->
<td height="100" style="height: 100px;">Content</td> Show the original
<td style="min-height: 100px;">Content</td> No signup · Five clients free, Outlook Classic included · All 21 with an account
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min-height is not among the 24 features we have screenshotted on real installs. The ones we have →
All 21 clients, problems first
| Client | Support |
|---|---|
| Outlook Classic | Not supported |
| Proton Mail | Not supported |
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 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 |
| HEY Mail | Works |
| AOL Mail | Works |
| Fastmail | Works |
| Superhuman | Works |
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fix
min-height in Outlook Classic · Every feature in Outlook Classic · All email CSS features · What real installs show
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