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How to Send Your Generated HTML Email?

How to Send Your Generated HTML Email? – A Guide with Mainstream Email Tools

Congratulations! You have designed a beautiful HTML email using our tool and copied the full HTML code. Now it's time to send it out. This article walks you through common ways to send HTML emails, points out security limitations of webmail services, and suggests better alternatives.

I. Ways to Send HTML Emails Yourself

1. Using Desktop Email Clients (Recommended)

Desktop clients usually allow you to edit the raw source code, ensuring your HTML renders exactly as intended.

  • Microsoft Outlook (Desktop)

    1. Open Outlook and create a new email.
    2. Go to File → Options → Customize Ribbon and enable the Developer tab.
    3. In the email editing window, click the Developer tab and then HTML Source (or View Source).
    4. Paste your HTML code into the pop‑up window, save it, and you’ll see the rendered result.
    5. Fill in recipients, subject, and send.

  • Mozilla Thunderbird

    1. Create a new message, then click Insert → HTML... (or use the shortcut Ctrl+Shift+H in some versions).
    2. Paste your HTML code into the dialog and confirm – the content will appear in the editor.
    3. Complete the rest and send.

  • Apple Mail (macOS)

    • Apple Mail does not offer direct source editing, but you can try Edit → Paste and Match Style to preserve some formatting, or use third‑party plugins like MailExtractor.

2. Using Webmail Services (Workarounds)

Most webmail services do not support pasting raw HTML into the compose window, and they often strip script, style, and even modify your layout. For international users, the following workarounds are commonly used:

  • Gmail: Install a browser extension such as “Insert HTML Email” – it adds a button in the compose window to paste your code.
  • Outlook.com: You might save your HTML as a .html file and attach it, but recipients would have to open the attachment rather than seeing it inline.

For users of Chinese email services (QQ Mail, 163 Mail), similar limitations apply:

  • QQ Mail: No source editing is available; you could attach an .html file, but it won’t display inline. Using a desktop client or our built‑in sending service is recommended.
  • 163 Mail: Also lacks source editing; web interface is not recommended for complex HTML emails.

⚠️ Note: Even with workarounds, email providers may forcibly rewrite your styles, block external images, and strip JavaScript, leading to a final result far from your original design.

II. Why Self‑Sending Might Not Look Perfect?

  • Security Policies – Mainstream email services scan and modify messages, e.g., disabling scripts, overriding CSS properties, and blocking external resources.
  • Rendering Engine Differences – Different clients (or even different versions of the same client) support HTML/CSS inconsistently, causing misalignment or loss of styling.
  • Image Handling – If your HTML references external images, many providers block them by default; recipients must manually click “Show images”.

So, if your email appears broken in the inbox, it’s not your HTML code – it’s the platform’s security measures.

III. Better Solutions

Option A: Use Our Built‑in “Send on Your Behalf” Service

If you’re not satisfied with the results of self‑sending, we strongly recommend our tool’s built‑in sending service (we send it for you). This service is optimised for all major email clients, preserving your design, images, and styles as much as possible.

  • Advantages: No configuration needed; automatic compatibility tuning; real‑time delivery tracking.
  • Available to: All users (free or paid).

Option B: VIP Users – Configure Your Own SMTP (Best Performance)

For VIP users who require full control over the sending channel, we suggest setting up your own SMTP parameters inside the tool. Emails will then be sent directly through your own mail server – no third‑party restrictions, custom sending domain, and better deliverability and branding.

  • How to configure: Simply provide SMTP server, port, username, and an app password (or authorisation code). For detailed steps, refer to our previous article: SMTP Configuration Guide for Major Email Platforms (available in Chinese, English, and Spanish).
  • Advantages: Dedicated sending IP; fully compatible with your DKIM/SPF records; highest possible delivery rate.

Summary

  • For occasional sends where minor deviations are acceptable, use a desktop client (Outlook or Thunderbird) to send yourself.
  • For flawless rendering matching your design, choose our send‑on‑your‑behalf service.
  • For VIP users with strict requirements on deliverability and branding, configuring your own SMTP is the optimal choice.

Should you have any questions, feel free to contact our support team. Happy emailing!