border-spacing in Gmail iOS
Works border-spacing works in Gmail iOS.
Works in 17 of 21 · not supported in 2 · 2 untested
Which clients
- Works
- Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook iOS, Outlook Android, Apple Mail, Apple Mail iOS, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, Samsung Mail, Thunderbird, Proton Mail, AOL Mail, Superhuman
- Not supported
- Outlook Classic, Outlook for Mac
- Untested
- HEY Mail, Fastmail
The fix for the clients that need it
Needed in 2 of 21: Outlook Classic and Outlook for Mac.
Use the cellspacing HTML attribute instead of border-spacing CSS
<table cellspacing="8" style="border-collapse: separate;">
<tr><td>Cell</td></tr>
</table>Show the original
<table style="border-spacing: 8px; border-collapse: separate;">
<tr><td>Cell</td></tr>
</table>A free account opens all 21 clients and keeps your checks for 7 days. Create a free account →
Your next question
- Does visibility work in Gmail iOS?
Works in 13 of 21 · not supported in 8
fix - Does text-shadow work in Gmail iOS?
Works in 12 of 21 · not supported in 9
fix - Does animation work in Gmail iOS?
Works in 5 of 21 · partial in 1 · not supported in 15
fix - Does transform work in Gmail iOS?
Works in 7 of 21 · partial in 1 · not supported in 13
fix - Does overflow-wrap work in Gmail iOS?
Works in 2 of 21 · partial in 3 · not supported in 13 · 3 untested
fix - Does position work in Gmail iOS?
Works in 2 of 21 · partial in 14 · not supported in 5
fix
Questions
- How many email clients support border-spacing?
- It works in 17 of 21, not supported in Outlook Classic and Outlook for Mac, 2 untested.
- Does border-spacing work in Gmail Android?
- border-spacing works in Gmail Android. Closest to Gmail iOS: Gmail Android, which agrees on 273 of the 300 features both are tested on.
To see what in your email Gmail iOS does not support, paste the whole email.
No signup · Five clients free, Outlook Classic included · All 21 with an account
The checker needs a computer screen.
Real captures 14 Oct 2026 on 10 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 20 Dec 2023 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping · the Gmail capture is not counted (it skips Gmail's sanitiser)