Citát Timo Sirainen <tss@iki.fi>:

On 9 Apr 2017, at 15.42, azurit@pobox.sk wrote:

...

Hi,

i found another bug in FTS while parsing
quoted-printable/base64-encoded sender's name inside 'From' header
(again, i was figuring out why some of messages cannot be searched).

Header: From: =?UTF-8?Q?A=2CB?= <test@example.com> Data send to Solr by Dovecot: <field name="from">A@, B
&lt;test@example.com&gt;</field>

Header: From: =?UTF-8?Q?A_B=2CC?= <test@example.com> Data send to Solr by Dovecot: <field name="from">A@</field>

Header: From: =?UTF-8?B?QSBCLEMK?= <test@example.com> Data send to Solr by Dovecot: <field name="from">A@</field>

Dovecot 2.2.27.

This is a bit troublesome to fix and it's already been broken for
years before anybody noticed.. I think it's going to take a few
releases to get this fixed. I think we'd need to fix message-address
parser to support EAI-compatible UTF8 headers and that likely fixes
this as well.

Is there any workaround until it's fixed? This bug is little
complicated as complete fix includes also reindexing afffected emails
(which, probably, means reindexing everything as it would be very hard
to identify such e-mails).