Thanks people.
There was a further update to courier last night and the problem has now
disappeared. Still don't understand why only some people were affected.
I was personally never affected - even though mail to one customer was
also forwarded to me - she had this problem and I didn't.
On 2019/11/01 16:13, Andreas Metzler via Exim-users wrote:
> On 2019-10-31 Mark Elkins via Exim-users <exim-users@???> wrote:
>> Hi folks,
>> I'm pulling out my hair... I have a strange e-mail problem. I'm hoping this
>> community can help.
>> I run an ISP in South Africa. Servers are all Linux Gentoo. I use EXIM and
>> Courier-IMAP/POP to deliver emails to about 3000 users using about 400
>> different domain names. From Monday the 28th October, a few clients - 10 so
>> far - are sometimes getting the following....
>
>>> Begin forwarded message:
>>>
>>> *From: *Mail Delivery Subsystem <postmaster>
>>> *Subject: **Cannot display Unicode content*
>>>
>>> This E-mail message was determined to be Unicode-formatted
>>> but your E-mail reader does not support Unicode E-mail.
> [...]
>
> The error seems to be generated by courier. It can be found in its
> sourcecode:
>
> https://sourceforge.net/p/courier/courier-libs.git/ci/master/tree/imap/pop3dserver.c#l654
>
> cu Andreas
>
--
Mark James ELKINS - Posix Systems - (South) Africa
mje@??? Tel: +27.128070590 Cell: +27.826010496
For fast, reliable, low cost Internet in ZA: https://ftth.posix.co.za
