Show HN: I wrote an email app that accepts only one sender per inbox

Re:Show HN: I wrote an email app that accepts only one sende... by edpin2000 on Wednesday October 14, 2026 @11:29PM (#50098770)

Ah, but Clova handles that. It locks to the domain, not the sender or the subdomain. So both your examples would still be allowed (citi.com and bankofamerica.com). There are also permanent inboxes in the system, which allow anyone. The trick is to delete them after a while when they get polluted with spam.

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Re:Show HN: I wrote an email app that accepts only one sende... by hashhar on Wednesday October 14, 2026 @11:52PM (#50098929)

banks also often have multiple domains - different one for transactional emails, different one for statements etc.

Instead of auto-locking it should be possible as user to configure the list of allowed domains that land there.

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Re:Show HN: I wrote an email app that accepts only one sende... by davchana on Wednesday October 14, 2026 @11:37PM (#50098833)

I have had banks using different domains totally, like bank.com and bank.email and notifications.bank.com etc.

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Re:Show HN: I wrote an email app that accepts only one sende... by wongogue on Thursday October 15, 2026 @08:56AM (#50102979)

And then you have India where every bank domain is required to end in .bank.in

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