Find an emailed receipt for a previous Professional Email purchase – the subject should include “WordPress.com Receipt #(receiptId)”, or find the receipt from your billing history in Calypso
Navigate to /checkout/thank-you/:siteSlug/:receiptId
Purchase a new Professional Email subscription for a domain you own
Via either path, you should see a “Congratulations on your purchase!” header, some further text about getting an email, and then see a secondary “Manage email” button next to a “Log in to my email” button (which should be primary).
Screenshot
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