Re: Procmail filtering question

Peter Pentchev <[email protected]> Wed, 27 May 2020 14:46:10 +0300

Newsgroups	gmane.mail.fetchmail.user
Message-ID	<[email protected]>

On Wed, May 27, 2020 at 12:39:57PM +0100, Richard Kimber via Fetchmail-users wrote:
> On Wed, 27 May 2020 14:33:40 +0300
> Peter Pentchev <[email protected]> wrote:
> 
> > ...but the whole point is that this encoding means that the subject
> > contains non-ASCII characters. There is no way to convert them to
> > ASCII.
> 
> But if it's utf-8 can't you use something like:
> konwert utf8-ascii

Even if you do something like this, even if you manage to figure out
a way to deal with characters that *do not exist* in the US-ASCII
character set (yeah, I can see that konwert may have some limited
capabilities of approximating them, but that sounds quite weird to me);
even if you manage to do that, you will not have the original message.
If you feed the modified message to procmail and it stashes it into some
mailbox/folder/whatever or passes it to another program, you will *not*
have the message that the sender wanted you to have. In some cases this
might not be so bad ("I don't care if a spam message has an extra quote
or not"), but in others, like verifying OpenPGP or S/MIME signatures,
it might be, how do I put it, bad :)

G'luck,
Peter

-- 
Peter Pentchev  [email protected] [email protected] [email protected]
PGP key:        http://people.FreeBSD.org/~roam/roam.key.asc
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