How many email clients support position?

It works in 2 of 21, partial in 14, not supported in 5.

Does position work in Apple Mail iOS?

position is partly supported in Apple Mail iOS. Closest to Apple Mail: Apple Mail iOS, which agrees on 284 of the 298 features both are tested on.

position in Apple Mail

Partial position is partly supported in Apple Mail.

Supports relative, absolute but not sticky and fixed.

Works in 2 of 21 · partial in 14 · not supported in 5

Which clients

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

Your reader in Apple Mail may not see position the way you wrote it, even if it looks right where you tested it.

What to do instead in Apple Mail

Use table-based positioning instead of CSS position

instead

7 lines

<table role="presentation" width="100%" cellpadding="0"
  cellspacing="0" border="0">
  <tr>
    <td valign="top">Content</td>
    <td width="80" valign="top" align="right">Badge</td>
  </tr>
</table>

Show the original

before

6 lines

<div style="position: relative;">
  <div style="position: absolute; top: 0; right: 0;">
    Badge
  </div>
  <p>Content</p>
</div>

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What Apple Mail does with position

caniemail record, tested upstream 16 May 2021

Partial. Supports relative, absolute but not sticky and fixed.

Your next question

Every feature in Apple Mail · position in every client

Questions

How many email clients support position?: It works in 2 of 21, partial in 14, not supported in 5.
What do I use instead of position in Apple Mail?: Use table-based positioning instead of CSS position.
Does position work in Apple Mail iOS?: position is partly supported in Apple Mail iOS. Closest to Apple Mail: Apple Mail iOS, which agrees on 284 of the 298 features both are tested on.

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

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caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 16 May 2021 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping