Block incoming e-mails from a specific domain or a country

To block these serverwide or on a per-user basis, you may do so by editing the blacklist settings. To block email from a particular country, you may use the pattern of ‘*@*.<CCtld>’. To block a specific domain, you would use ‘*@*.<tld>’. For instance, if you wanted to block all mail from Taiwan, you would use ‘*@*.tw’.  Or to block all mail from mydomain.com, you would use ‘*@*.mydomain.com’.

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