Hi,
I need to block emails with fake FROM like :
From: "Nick Blue <[email protected]>" <[email protected]>
The postfix has the feature header_checks and mime_header_checks. When
the FROM is with plain text, it works fine, but when the FROM is mime
encoded like this:
From: =?UTF-8?B?PElQQlJJQ0sgbsK6IDMyNTc0PiBhc2FudG9zQGlwYnJpY2suY29t?=
<[email protected]>
the email is not blocked, even with mime_header_checks.
Configuration for header_checks and mime_header_checks:
root@porto:/etc/postfix# cat mime_header_checks
if /From:/
/From:[[:space:]]+"(.*)[@](.*)"+(.*)/ REJECT NO MORE FAKES!
endif
root@porto:/etc/postfix#
Where can i find more information about mime_header_checks? or other
solution?
Thanks
E. Maia
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