New:
Email Proofreader launched with early access pricing

Proofread your SendGrid emails automatically with Spling

Developers and teams sending high volumes of transactional and marketing email are often exposed by manual content QA process. If a typo slips into a template it often goes out to users. Spling fits into your existing test send workflow to catch and flag content issues before they ship.

Spling spell checks entire websites

SendGrid handles delivery at scale. Spling handles content quality.

SendGrid is built for developers and teams sending high volumes of transactional and marketing email. Its strengths are deliverability, reliability, and scale. But none of that helps if a typo slips into a template and goes out to a million users. Spling fits into your existing test send workflow to catch content issues before they ship.

How it works with SendGrid

  1. Sign up to get your free Spling QA email address.
  2. Add it to your SendGrid test send list.
  3. Spling emails you proofreading results automatically, every time.

No API integration. No additional setup. Works with SendGrid's dynamic templates and marketing campaigns.

Where typos hide in SendGrid

SendGrid users tend to focus on deliverability and infrastructure. Content QA often falls through the cracks, especially in teams where developers own the templates and no dedicated editor is in the loop. Common problem areas include:

  • Dynamic template copy that rarely gets reviewed after initial setup
  • Transactional emails like order confirmations and password resets that go out thousands of times a day
  • Marketing campaigns built quickly under deadline pressure

Spling catches issues across all of these automatically.

Built for teams, not just individuals

Route proofreading results to any inbox. If your email program is managed by a mix of developers and marketers, Spling gives everyone visibility into content quality without needing access to SendGrid itself.

Conclusion: SendGrid plus Spling keeps your content as reliable as your delivery.

SendGrid's infrastructure is trusted to send over 100 billion emails a month. Spling makes sure the words inside those emails are worth sending. Add your Spling QA address to your test list once and content proofreading becomes part of every send.