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Good way to root out spam.
I am not sure it works in an enterprise situation though. I would have people I didn't know emailing me all the time about things when I ran my business. I would usually have one or two point of contacts for a client but people go on vacation, leave etc. Not every customer is going to email you to say please whitelist this address.
Plus if I handed out my business card to someone in the hopes they email me I don't want to miss their email because I might be missing out on potential business.
You can setup your email server to reply with an NDR (non-delivery report) message to all blacklisted domains/emails with a specific message to pay a LN invoice in order to be whitelisted.
I did that on my private email domain, where only specific people can email me. All the rest... make them pay.
Corporate email servers can be configured easily like that.
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20 sats \ 1 reply \ @Fenix 8h
Very interesting. How did you know what email address you have to whitelist?
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21 sats \ 0 replies \ @DarthCoin 5h
Ir's simple: only those you give them your email or you alrwady have them as personal contacts. You create a base whitelist in your email server config and slowly you build it.
Keep in mind: spam is also coming even from gmail itself. Exampke: you sent an email from your personal domain to a gmail address. Gmail automatically sell that info to data brokers. Your petsonal domain is automatically in hands of data brokers.
Another method is to give free email accounts to your family, friends, close business partners, from your own email server. That way you keep everuthing under control.
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There's probably a difference between an address intended for sales/marketing and an address intended for other communication.
I agree that it doesn't make sense in the sales/marketing world.
But if you are someone who isn't looking for new business necessarily, it sets a threshold for getting in front of you and taking up attention.
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