Structure content by using tables. Store images on a live web server or use stock images. Use “https://” (or “http://”) in your links.

Spam filters can block images and attachments. They also tend to filter emails of substantial size, which can include you if you have large image files or numerous images. Many mobile users won’t see your images anyway.

Provide a way to opt out of your email list. This can be an automatic unsubscribe link at the bottom of your email. You can also identify an email address for them to contact and ask to be removed if they no longer wish to receive your emails at any point in the future. Include your business’s name and physical mailing address. Readers need to know that you are a valid businesses and not a scheme or spammer. Ensure that the “from” and “reply-to” addresses are valid and active. Provide a way for readers to contact you if they have questions or are interested in supporting your business. Choose an appropriate subject line. Your subject should be a concise description of what the email contains, not invalid sales offers or false promotions.

Look to see if links are intact and active. Ensure that images and fonts appear correctly. Check to see if your table is too wide. Test your email in as many email readers as possible.

If your email is sent to the Spam folder during any of your tests, you may have to remove things such as images and links to pages which don’t use HTTPS encryption.

Windows — Click File, click Save As, enter a name followed by . html (e. g. , “file. html”), click the “Save as type” drop-down box, click All Files, and click Save. Mac — Click Format, click Make Plain Text, click OK when prompted, click File, click Save, click the downward-facing arrow to the right of the “Name” field, uncheck the “Hide Extension” box, replace the “. txt” part of the name with “. html”, click Save, and click Use . html when prompted.

You can also open your preferred web browser and then click and drag your HTML file into the browser window.

You can also click anywhere on the page and then press either Ctrl+A or ⌘ Command+A to highlight the whole page, but this may cause you to highlight components of the page you don’t want to include.

Gmail — Go to https://www. gmail. com/ and log in if necessary, then click COMPOSE. Outlook — Go to https://www. outlook. com/ and log in if necessary, then click ＋ New message. Apple Mail — Go to https://www. icloud. com/#mail and log in, then click {“smallUrl”:“https://www. wikihow. com/images/f/ff/Iphonequick_compose. png”,“bigUrl”:"/images/thumb/f/ff/Iphonequick_compose. png/30px-Iphonequick_compose. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of an Apple icon\n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Fair_use">Fair Use</a>
\n</p></div>"}. Yahoo — Go to https://www. yahoo. com/mail and log in if necessary, then click Compose.

Click the gear-shaped “Settings” {“smallUrl”:“https://www. wikihow. com/images/3/30/IE11settings. png”,“bigUrl”:"/images/thumb/3/30/IE11settings. png/30px-IE11settings. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} icon in the upper-right corner of the inbox. Scroll down and click Show full settings Click the Mail tab. Click Compose and reply Click the “Plain text” drop-down box at the bottom of the window (if this box says “HTML”, Outlook already supports HTML emails). Click HTML Click Save, then exit the menu.

You’ll need to copy all of the body text—including the “” and “” tags—but Gmail will cover the document type and the HTML tags themselves, so you don’t need to copy those.

If you’re using the new version of Gmail, you’ll click Compose here.

Make sure you don’t select anything to the left or right of your placeholder text.