Question 1

What does the Mail Lock Outline icon mean?

Accepted Answer

The mail-lock-outline icon represents a secured or locked email symbol with an outline style, often used to indicate protection or confidentiality. It originates from the Material Symbols library created by Google. This icon is significant in email and communication applications where security is paramount.

Question 2

Where is the Mail Lock Outline icon used?

Accepted Answer

In real-world applications, this icon appears in email clients like Gmail, Outlook, or mobile apps like WhatsApp and Facebook Messenger. It's also used in software like ProtonMail or Tutanota, which prioritize email encryption.

Question 3

What does the Mail Lock Outline icon tell users?

Accepted Answer

From a UX perspective, this icon communicates that the email or message is secure and protected, helping users understand the level of confidentiality.

Question 4

Can I download the Mail Lock Outline icon as SVG or PNG?

Accepted Answer

Yes. Open Get icon, then Download file: SVG for code or design tools like Figma; PNG, WebP or JPEG at 512px; or an ICO favicon with 16, 32 and 48px inside. Each one uses what you set in Customize.

Question 5

How do I install the Mail Lock Outline icon with the shadcn CLI?

Accepted Answer

Sign in (it's free), then open Get icon, Install with shadcn CLI, and pick your package manager to copy the command. It adds the icon to components/icons/material-symbols-mail-lock-outline.tsx.

Question 6

How do I use the Mail Lock Outline icon in Next.js or React?

Accepted Answer

Copy it as React (from Get icon, or the Code section): a typed MailLockOutlineIcon component you paste into your project, with no package to install. It works in Next.js and any React app.

Question 7

How do I use the Mail Lock Outline icon in Vue, Svelte or Angular?

Accepted Answer

Open Get icon, then Copy as code, and pick Vue, Svelte, Angular, Solid or Preact; the Code section shows each one too. Every version is one self-contained component with the SVG inside.

Question 8

Can my AI agent install it for me?

Accepted Answer

With Pro, the shadcn.io MCP server lets Claude Code, Cursor or any MCP client find the Mail Lock Outline icon, or any of 15,862 Material Symbols icons, and install it from a prompt.

Question 9

Can I use the Mail Lock Outline icon in commercial projects?

Accepted Answer

Yes. Apache 2.0 allows commercial use; keep the license notice when you ship the icons' source files. The full terms are in the license, linked on this page.

Question 10

Is the Mail Lock Outline icon free?

Accepted Answer

Yes. Copying and downloading it is free, and the shadcn CLI install only needs a free account.

Question 11

How do I change the color of the Mail Lock Outline icon?

Accepted Answer

It's drawn in currentColor, so it takes the text color wherever you use it. To bake a color in, set one in Customize before you copy.

Question 12

How do I change the size of the Mail Lock Outline icon?

Accepted Answer

Set width and height on the component, or a class like size-6. It's drawn on a 24 × 24 grid, so it stays sharp at any size. Customize also sets the size it exports at, its padding and rotation.

Question 13

How do I make the Mail Lock Outline icon accessible?

Accepted Answer

Next to a visible label it's decoration: add aria-hidden="true" so screen readers skip it. Standing alone, as in an icon button, give the button a name instead, like aria-label="Mail Lock Outline", so screen readers say what it does.

Mail Lock Outline