A: Great question — and an important one if you care about deliverability (which you absolutely should!) 📬

To clarify:

✅ We do not use SendGrid anymore.
That was a legacy provider from the early days. We’ve since moved fully to our own email infrastructure, built on top of Amazon SES with custom IP warmup, bounce handling, and domain-level tracking.

Now to your main concern:

💡 Reputation is domain-based, not shared across accounts.

• Each sender's domain (yours) builds its own reputation
• You're not affected by other Encharge users' behavior — there's no shared pool of deliverability risk
• We strongly recommend using your own verified sending domain (via SPF, DKIM, and DMARC) — and Encharge walks you through how to do that

When you do that, you own your reputation, and Encharge is simply the infrastructure powering it.

So yes — we take deliverability very seriously, and you’re in full control of your sending health 💪

Let me know if you want tips on warming up a domain or improving your score!

However, we've written more about it here: https://encharge.io/email-deliverability/