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gap in AOL Mail

Not supported gap is not supported in AOL Mail.

Works in 7 of 21 · partial in 9 · not supported in 5

Which clients
Works
Apple Mail, Apple Mail iOS, Samsung Mail, Thunderbird, HEY Mail, Proton Mail, Superhuman
Partial
Gmail, Gmail Android, Gmail iOS, Outlook 365, Outlook (New), Outlook iOS, Outlook Android, Outlook for Mac, Fastmail
Not supported
Outlook Classic, Yahoo Mail, Yahoo Mail Android, Yahoo Mail iOS, AOL Mail

Your reader in AOL Mail sees the email without gap, even if it looks right where you tested it.

The fix for AOL Mail

Use padding or margin on child elements instead of gap

after 
<table role="presentation" cellpadding="0"
  cellspacing="0" border="0">
  <tr>
    <td style="padding-right: 16px;">Item 1</td>
    <td style="padding-right: 16px;">Item 2</td>
    <td>Item 3</td>
  </tr>
</table>
Show the original
before 
<div style="display: flex; gap: 16px;">
  <div>Item 1</div>
  <div>Item 2</div>
  <div>Item 3</div>
</div>

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What AOL Mail does with gap

@emailens/engine 0.18.22 on the original code

AOL Mail does not support "gap".

Your next question

Every feature in AOL Mail · gap in every client

Questions

How many email clients support gap?
It works in 7 of 21, partial in 9, not supported in 5.
What do I use instead of gap in AOL Mail?
Use padding or margin on child elements instead of gap.
Does gap work in Yahoo Mail Android?
gap is not supported in Yahoo Mail Android. Closest to AOL Mail: Yahoo Mail Android, which agrees on 281 of the 297 features both are tested on.

To see what else in your email AOL Mail does not support, paste the whole email.

The checker needs a computer screen.

caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 28 Dec 2022 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping