On 2015-08-28 18:07, Viktor Dukhovni wrote: > On Fri, Aug 28, 2015 at 05:59:08PM +0200, Per olof Ljungmark wrote: > >> Yes, that helped with Thunderbird but not from Horde/IMP where it still >> bounces the same way. >> >> The difference seems to be that IMP sends a >> "Content-Transfer-Encoding: quoted-printable" >> >> and TB >> "Content-Transfer-Encoding: 8bit" >> >> Could this be the cause? > > Yes, if IMP sends data claimed to be quoted-printable, but contaning > unencoded non-ASCII characters. > > You'll need to capture a sample message and find the violation.
Looking at the sent messages I cannot find anything violating quoted-printable, "It's" is "It=C2=B4s" for instance. IMP uses "Content-Transfer-Encoding: quoted-printable" and that seems to be true. and TB uses "Content-Transfer-Encoding: 8bit" which also seems true and is dealt with according to Wietse's reply. What I do not understand is that in the bounce from the remote Exchange mail relay, our IMP message is presented as 8bit. Sent: --=_rJ0N-qFsVHye8YMhx4uKOaC Content-Type: text/plain; charset=utf-8; format=flowed; DelSp=Yes Content-Description: Endast text-meddelande Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Bounce: --=_rJ0N-qFsVHye8YMhx4uKOaC Content-Type: text/plain; format=flowed; charset="utf-8"; delsp=Yes Content-Description: Endast text-meddelande Content-Disposition: inline Content-Transfer-Encoding: 8bit As my knowledge sort of ends here I will ask our sysadmin Monday to look over what is coming out of IMP, but I seriously doubt that it is anything wrong with it. Thanks! -- Per