Allow merchants to customize the sender icon/logo in customer emails

When customers receive emails from Subi-powered notifications, the inbox often displays a default gray or blue icon instead of the merchant’s or Subi's brand logo. This creates a less polished and less professional look in the customer’s inbox, especially when merchants want their communication to feel on-brand and trustworthy.

The request is to enable merchants to upload and use their own logo or brand image as the sender icon shown in email clients. This would ensure that all subscription-related emails are visually aligned with the merchant’s brand, improving recognition and customer trust. We want to be like the attached image, which has the Shopify logo for its contact.

If having branded sender icons in your email notifications would enhance your customer experience, please upvote this request!