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<form> in Outlook for Mac

Partial <form> is partly supported in Outlook for Mac.

Not supported.

Works in 10 of 21 · partial in 4 · not supported in 7

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

Your reader in Outlook for Mac may not see <form> the way you wrote it, even if it looks right where you tested it.

The fix for Outlook for Mac

Replace embedded form with a link to a hosted form

after 
<table role="presentation" cellpadding="0" cellspacing="0">
  <tr>
    <td style="background-color: #6d28d9; border-radius: 6px;
               padding: 12px 32px;">
      <a href="https://example.com/subscribe"
        style="color: #fff; text-decoration: none;
               font-family: Arial, sans-serif;
               font-weight: bold;">
        Subscribe Now
      </a>
    </td>
  </tr>
</table>
Show the original
before 
<form action="/subscribe" method="POST">
  <input type="email" placeholder="Email" />
  <button type="submit">Subscribe</button>
</form>

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What Outlook for Mac does with <form>

caniemail record, tested upstream 10 Sep 2019

  • Not supported. The <form> is there but values are not submitted.

Your next question

Every feature in Outlook for Mac · <form> in every client

Questions

How many email clients support <form>?
It works in 10 of 21, partial in 4, not supported in 7.
What do I use instead of <form> in Outlook for Mac?
Replace embedded form with a link to a hosted form.
Does <form> work in Outlook (New)?
<form> is partly supported in Outlook (New). Closest to Outlook for Mac: Outlook (New), which agrees on 279 of the 299 features both are tested on.

To see what else in your email Outlook for Mac does not support, paste the whole email.

The checker needs a computer screen.

caniemail (MIT) via @emailens/engine 0.18.22 · tested upstream 10 Sep 2019 · data last changed 10 Nov 2026 · Outlook (New) cells are the engine's mapping