[Tickets #14490] Re: serialization failed

[noreply at bugs.horde.org]

DO NOT REPLY TO THIS MESSAGE. THIS EMAIL ADDRESS IS NOT MONITORED.

Ticket URL: https://bugs.horde.org/ticket/14490
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  Ticket             | 14490
  Updated By         | build+horde at de-korte.org
  Summary            | serialization failed
  Queue              | IMP
  Version            | 6.2.16
  Type               | Bug
  State              | No Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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build+horde at de-korte.org (2018-11-13 09:07) wrote:

> 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.