How to Disable Cloudflare Proxy for Your Custom Domain

If you manage your domain through Cloudflare, your DNS records are likely set to Proxied mode by default (shown as an orange cloud icon). While this is great for regular websites, it breaks email services like Mailbux because Cloudflare intercepts the connection.

This guide shows you exactly how to disable the Cloudflare proxy for your Mailbux CNAME records so that webmail, admin panel, mail server (IMAP/SMTP), and SSL certificates all work correctly.

Why Does Cloudflare Proxy Break Email?

When Cloudflare proxy is enabled (orange cloud), all traffic goes through Cloudflare's servers first. This causes three problems for Mailbux:

• SSL cannot be installed — Mailbux needs to verify domain ownership to issue a Let's Encrypt certificate, but Cloudflare's proxy intercepts this verification.
• Mail server (IMAP/SMTP) won't connect — Outlook, Thunderbird, and iPhone use IMAP (port 993) and SMTP (port 465/587). Cloudflare only proxies HTTP/HTTPS traffic, so email clients cannot connect.
• Webmail may show errors — Cloudflare can modify headers and cache responses, causing authentication issues with the webmail interface.

Step-by-Step: Disable Cloudflare Proxy

Step 1: Log in to Cloudflare

Go to dash.cloudflare.com and select the domain you are using with Mailbux.

Step 2: Go to DNS Settings

Click DNS in the left sidebar, then click Records. You will see a list of all your DNS records.

Step 3: Find Your Mailbux CNAME Records

Look for the two CNAME records you created for Mailbux:

Step 4: Click the Orange Cloud Icon

For each of the two CNAME records above, click the orange cloud icon in the "Proxy status" column. It will change to a grey cloud with the label DNS only.

Important: You must do this for both CNAME records (webmail and mail server). If you only disable proxy on one, the other will still not work.

Step 5: Save and Wait

Cloudflare applies DNS changes almost instantly, but it can take 2–5 minutes for the change to propagate. After waiting:

1. Go back to your Mailbux Rebrand page
2. Click Re-check & Install SSL in the Cloudflare alert box
3. If it says "DNS OK! Installing SSL..." — you're done!
4. If it still says "Still proxied!" — wait another minute and try again

Troubleshooting

Still showing "Proxied" after disabling?

• Wait longer — DNS propagation can take up to 5 minutes in rare cases.
• Check both records — Make sure you disabled proxy on both the webmail and mail server CNAME records.
• Check for page rules — Cloudflare Page Rules or Transform Rules can force proxy on certain subdomains. Remove any rules that apply to your Mailbux subdomains.
• Check for CNAME flattening — If your CNAME is on the root domain (@), Cloudflare may flatten it to an A record and force proxy. Use a subdomain instead (e.g., mail.yourdomain.com).

Will disabling proxy affect my website?

No. You are only disabling the proxy for the specific subdomains used by Mailbux (e.g., mail.yourdomain.com and smtp.yourdomain.com). Your main website's DNS records remain unaffected.

Summary

That's it! Once the proxy is disabled and DNS is verified, Mailbux will automatically install your SSL certificate and your branded webmail, admin panel, and mail server will start working.