Bug#885149: exim4-base: exim4 and SMTPUTF8

[Andreas Metzler]

On 2017-12-24 Hanno Wagner <rince at ivanova.notwork.de> wrote:
> Package: exim4-base
> Version: 4.89-2+deb9u2
> Severity: wishlist

> exim4 isn't able to use SMTPUTF8 in it's default configuration within
> Debian.
> According to
> https://www.exim.org/exim-html-current/doc/html/spec_html/ch-internationalisation.html
> this is a decision to take while compiling exim4 (you need libidn and
> libidn2 and some additional configuration lines in the Makefile, see
> src/EDITME), so this is not something you can configure afterwards.

> I'd like to ask you to enable this in exim as a default. I already had
> the situation that a normal site tried to send a mail with UTF8-Header
> and it got bounced back to the sender.
[...]

Hello,

I suspect that message would have bounced with SMTPUTF8 even if exim4
was built with SMTPUTF8 support because the sender obviously is a broken
implementation that probably would not have enabled SMTPUTF8 at EHLO.

cu Andreas
-- 
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