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I need to block emails that have addresses that are not valid.

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People send me spam emails by making up an email address that uses the last part of our corporate email address. For instance, if my email is info@mycompany.com, someone makes up something like gta007@mycompany.com and sends spam to that address. I need to get all legitimate miss spellings such as transposed letters, so all emails addressed to @mycompany.com come into my inbox. I would like to specify some addresses that are being sold to spammers that would be blocked. How can I do this?

People send me spam emails by making up an email address that uses the last part of our corporate email address. For instance, if my email is info@mycompany.com, someone makes up something like gta007@mycompany.com and sends spam to that address. I need to get all legitimate miss spellings such as transposed letters, so all emails addressed to @mycompany.com come into my inbox. I would like to specify some addresses that are being sold to spammers that would be blocked. How can I do this?

選ばれた解決策

You could add the dodgy addresses to an address book and use a filter that says from is in my address book "Dodgymails" then mark as junk.

You could also filter using the reverse logic if you have all the valid addresses in an address book. But it would not cover misspellings.

Your domain mail server should be rejecting mail to non existent addresses. That is how normal mail servers work, they get a request to deliver mail to XCV@Mydomain.com and that mailbox does not exist it rejects the reception of the mail.

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選ばれた解決策

You could add the dodgy addresses to an address book and use a filter that says from is in my address book "Dodgymails" then mark as junk.

You could also filter using the reverse logic if you have all the valid addresses in an address book. But it would not cover misspellings.

Your domain mail server should be rejecting mail to non existent addresses. That is how normal mail servers work, they get a request to deliver mail to XCV@Mydomain.com and that mailbox does not exist it rejects the reception of the mail.