visibility in AOL Mail
Not supported visibility is not supported in AOL Mail.
Works in 13 of 21 · not supported in 8
Which clients
- Works
- Outlook 365, Outlook (New), Outlook iOS, Outlook for Mac, Apple Mail, Apple Mail iOS, Yahoo Mail iOS, Samsung Mail, Thunderbird, HEY Mail, Proton Mail, Fastmail, Superhuman
- Not supported
- Gmail, Gmail Android, Gmail iOS, Outlook Classic, Outlook Android, Yahoo Mail, Yahoo Mail Android, AOL Mail
Your reader in AOL Mail sees the email without visibility, even if it looks right where you tested it.
The fix for AOL Mail
Use conditional comments or remove hidden content
<!-- For screen readers, use font-size: 0 trick -->
<div style="font-size: 0; max-height: 0; overflow: hidden;
mso-hide: all;" aria-hidden="true">
Preheader text
</div>Show the original
<div style="visibility: hidden;">
Hidden content for screen readers
</div>The checker needs a computer screen.
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What AOL Mail does with visibility
@emailens/engine 0.18.22 on the original code
AOL Mail does not support "visibility".
Your next question
- Does box-sizing work in AOL Mail?
Works in 16 of 21 · not supported in 5
fix - Does animation work in AOL Mail?
Works in 5 of 21 · partial in 1 · not supported in 15
fix - Does word-break work in AOL Mail?
Works in 4 of 21 · partial in 12 · not supported in 5
fix - Does opacity work in AOL Mail?
Works in 19 of 21 · not supported in 2
fix - Does gap work in AOL Mail?
Works in 7 of 21 · partial in 9 · not supported in 5
fix - Does transform work in AOL Mail?
Works in 7 of 21 · partial in 1 · not supported in 13
fix
Questions
- How many email clients support visibility?
- It works in 13 of 21, not supported in 8.
- What do I use instead of visibility in AOL Mail?
- Use conditional comments or remove hidden content.
- Does visibility work in Yahoo Mail Android?
- visibility 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.
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Real captures 14 Oct 2026 on 11 installs · caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 28 Feb 2019 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping