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Deliverability

Stop Landing in Spam: High Deliverability via Cloudflare Edge

• Tom Morton

Stop landing in spam

There is nothing quite as frustrating as customers sending support tickets complaining their purchase receipts or password resets “never arrived.” Most of the time, the email sent perfectly from WordPress, but went straight to spam.

If this happens to you, your web host or traditional SMTP provider might be to blame. Here is why—and how Cloudflare fixes it.

The problem with shared IPs

When you use the default WordPress mail() function, your server sends the email out directly. Standard unmanaged servers lack proper email headers like SPF and DKIM. Furthermore, if you are on shared hosting, other websites on your exact same server IP address might be sending spam. When Gmail or Outlook sees junk coming from that IP, they blacklist the IP entirely. Your legitimate emails get flagged as spam too.

Even premium third party tools struggle with this. Many legacy transactional email platforms place you on shared IP pools unless you pay hundreds of dollars a month for a dedicated IP address. If a noisy neighbor on your shared pool starts sending spam, your reputation ranks along with theirs.

The Cloudflare edge solution

To understand how WPFlareMail and Cloudflare solve this, you need to understand Cloudflare’s approach to domain reputation.

Cloudflare handles roughly 20% of internet traffic, which means they command infrastructural respect from mailbox providers like Gmail and Apple Mail. Cloudflare’s Email Service API abstracts away the concept of IP pools and focuses entirely on strict domain verification.

To send an email through Cloudflare’s network, your domain must pass strict SPF, DKIM, and DMARC validations. Because of these high standards, bad actors cannot easily exploit the network. When your emails arrive from Cloudflare’s infrastructure, they enjoy vastly higher inbox placement rates.

Fixing WordPress deliverability with WPFlareMail

Bridging your WordPress site to Cloudflare’s delivery network used to take hours of manual scripting. WPFlareMail handles the integration for you.

When you install WPFlareMail:

  1. The plugin catches any wp_mail() call—whether it is from a contact form, a WooCommerce checkout, or a new user registration.
  2. The email payload is securely handed to Cloudflare’s API via a lightweight worker.
  3. Cloudflare’s distributed edge network signs the email with your verified DKIM key and delivers it straight to the customer.

If you are tired of asking customers to “check your spam folder,” it might be time to put your emails on modern routing infrastructure.