Cpanel filter for non-english characters

[dandanfireman]

I have a customer that is looking to filter all incoming emails on an account to exclude any that have non-english characters in them. Since the customer can't read any language other than english, this seems fairly logical.


I understand that some languages might be difficult to detect. What about just excluding eastern languages that use a completely different character set? The customer is specifically getting a lot of messages in Korean, and would like them to go away.


TO anyone reading this that might believe this is in someway discriminatory, please don't bother replying. It is simply a technical question trying to avoid unwanted emails by a customer.

[chirpy]

Have a look at the email headers. You might see a change in the header record from the standard ASCII:

Content-Transfer-Encoding: 7bit

to something else for those languages. If so, you could filter on that header record.

[casey]

Look into spamassassin config as well:

# Speakers of Asian languages, like Chinese, Japanese and Korean, will almost
# definitely want to uncomment the following lines. They will switch off some
# rules that detect 8-bit characters, which commonly trigger on mails using CJK
# character sets, or that assume a western-style charset is in use.
#
# score HTML_COMMENT_8BITS 0
# score UPPERCASE_25_50 0
# score UPPERCASE_50_75 0
# score UPPERCASE_75_100 0