Every email is signed and checked
SPF, DKIM and DMARC are set up on your own domain before you can send. Gmail and Yahoo can see the email really came from you.

You are trusting us with your customers and your good name. Here is, in plain words, what sends your email, where your data lives, and what protects you.
| Part | Runs on | Where | What that means for you |
|---|---|---|---|
| Email delivery | Amazon SES | Sydney | Mail leaves through Amazon's delivery network, signed with your own domain. |
| App and API | Cloudflare | Global network | Fast from anywhere in India, with no server of ours to fall over. |
| Your data | Neon Postgres | Singapore | Can be restored to any point in the last 7 days. |
| Imported files | Cloudflare R2 | Private storage | Your uploaded spreadsheet is deleted automatically after 7 days. |
SPF, DKIM and DMARC are set up on your own domain before you can send. Gmail and Yahoo can see the email really came from you.

Each business sends with its own settings and its own daily limit. If complaints on your account cross 0.3%, your sending pauses on its own and we contact you to sort out the cause together.
Inboxes distrust a new sender who suddenly sends a very large volume. We start with a few hundred a day and raise the limit only while your bounces and complaints stay low.
Every marketing email has a one-click unsubscribe, both in the footer and in the button Gmail shows. Bounced addresses and complaints are never mailed again.
For every contact we keep how they joined, when, from which IP address and the exact words they agreed to, as India's DPDP Act expects. You can export it whenever you are asked.
Export your list any time. Erase a person on request, with a record that it was done. A log shows who in your team did what. We never sell or share your data.
Sharp Sent was built in small reviewed steps, each tested before it went live. Some of what that looks like:
Write to support@sharpsent.com. A person replies, usually within one working day. Our privacy policy and acceptable use policy have the formal details.