Tickets :: Comment on [#14490] serialization failed

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Comment	>> I read the forum a few years ago. >> What do you think? > > I have no idea what the above means. > >> How to mutilate the message? > > I used 'okteta' to change a character in a message that was already > in my Maildir. Horde didn't see to bother about that, but I'm running > a more recent PHP version (so this may be different). > >> I'm using postfix. When I set up the "header_checks regexp": >> /[^[:print:]]{8}/ REJECT Sorry, ascii characters only >> permitted by this server >> then many mail are reject. > > The message that was posted before would not be rejected by the > above expression. It matches 8 consecutive non-printable characters, > so I don't think this is what you need (as the example you posted has > only one non-ascii character in the subject field). > > Postfix has a configuration parameter to reject messages which don't > adhere to the requirement that headers must be 7-bit only: > > strict_7bit_headers = yes (default: no) > > I have never needed that though.
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