[Mailman-Users] German umlaut in From-line using outlook exchangewith closed lists

[Werner Spirk]

Hello Mark,

I put in your patch and it works !!

Thank you very much

Werner



On Tue, 11 Jan 2011, Mark Sapiro wrote:

> Werner Spirk wrote:
>
> >
> >Mails sent from outlook exchange will not be sent to a closed list
> >when there is a German umlaut within the name like
> >
> >From: =?iso-8859-1?Q?Mai=2C_G=FCnter?= <Guenter.Mai at lrz.de>
> >
> >in general:
> >
> >Mail sent
> >From: =?iso-8859-1?Q?Surname=2C_Givenname?= <ADDRESS at lrz.de>
> >
> >causes an undeliverable message by mailman sent to
> >surname at mailman.lrz-muenchen.de, if the list in a closed list:
>
>
> It is not the umlaut that causes the problem. It is the comma.
>
>
> >Outlook Exchange goes conform with RFC 2047 .
>
>
> You are correct, but this is tricky. The intent of RFC 2047 section 5,
> rule 3 is that an encoded word such as
> =?iso-8859-1?Q?Mai=2C_G=FCnter?= when used as the real name portion of
> an address will not contain any of the characters which are not
> allowed unquoted in this context, and this is true of that encoded
> word.
>
> However, Mailman looks at the From: header, and because of the way it
> processes this, it sees an ascii decoded header value which looks like
> 'Mai, G?nter <Guenter.Mai at lrz.de>'. It then parses this and gets two
> email addresses, 'mai' and 'guenter.mai at lrz.de' because of the
> unquoted comma.
>
> For some purposes, such as determining whether a post is from a list
> member, Mailman considers all the addresses and will determine that
> this  is from a list member if 'guenter.mai at lrz.de' is a member, but
> if the post is held for some reason such as 'guenter.mai at lrz.de' is
> moderated, the notice to the user will be sent to only the first
> address 'mai' which is invalid.
>
> So, yes, you are correct that Mailman is not doing the right thing here.
>
> I've developed a patch that I think will fix this without any other
> side effects. I've attached that as rfc2047.patch.txt. Please try this
> patch and see if it solves your problems.
>
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
>
>


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