Filter Incoming Emails by Domain
Valid for versions 84 through the latest version
Last modified: July 28, 2022
Use this interface to specify certain domains. Your server will block email messages from those domains. Your server rejects email messages when the
From address matches a blocked domain.
This feature is useful, for example, to block all email messages from a domain that sends only spam.
To block a domain, perform the following steps:
Enter a domain in the Blocked Domains text box.Note:
- For multiple domains, use a new line for each domain.
- To view an Internationalized Domain Name (IDN) as ASCII characters, select the Show domains as ASCII (relevant for IDNs) checkbox.
To reject all subdomains of a given domain, prefix the domain name with an asterisk (
*) character. The asterisk represents a wildcard character. For example, if you were to enter the
*.example.com domain. Your server will reject any email message from any subdomain of the
Internationalized Domain Name
You can also enter an IDN. This interface converts an IDN into Punycode. Punycode uses multiple ASCII characters to represent a single Unicode IDN character. For example, Punycode would represent the IDN
스타벅스코리아.com domain as the