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Should AI send your receipt and password emails?

No. These emails have to arrive every time, so use a sending service built for that, such as Resend. AI can write the wording, not deliver it.

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Our judgement, checked October 21, 2026.

What transactional email is

These are the emails your app or shop sends because a customer did something: a receipt, a password reset, a booking confirmation. Customers expect them at once. Missing ones lead to support messages and lost trust.

Why a sending service

A sending service signs your emails so that inboxes trust them, shows whether each one was delivered and lets you fix problems. It needs your domain set up correctly. AI cannot sign mail, check delivery or fix a failed one.

Where AI helps

AI can draft the text of each email in your voice and keep it short and clear. You review it, then paste it into your template. Our Resend guide walks through domain setup and an API key, with links to the vendor's documents.

A short checklist before you go live

Send a test of every email type to yourself, and open it on a phone. Check that the sender name and address look right. Check the links work and the unsubscribe or help line is where it should be. Look at where the message lands, in the inbox or in spam. Keep the subject line plain, such as "Your receipt". Make sure the message does not need images to be understood. Set up a way to see failed sends, and check it after your first day. Keep the API key in a secret store.

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Common questions

Do I need a separate service for these emails?

Not always. Many shop and booking platforms send them for you. Use a service when you build your own app or need more control.

Is Resend free?

Check the tool page for the current plans, including whether a free plan is listed, and the date we last checked. The vendor's own pricing page is the final word.

Why not just use my normal email account?

A normal account is not made for sending to many people and may be limited or marked as spam. A sending service is.

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