Thanks for the reply.

I added a new email account today to log and run it, and the problem is no longer reproduced.

Please let me close this case.

2025年1月9日(木) 18:43 Aki Tuomi <aki.tuomi@open-xchange.com>:

...

On 09/01/2025 11:06 EET h.murakami--- via dovecot <dovecot@dovecot.org> wrote:

Hi.

I am using dovecot's fts plugin and have found a bug-like behavior.

I have confirmed that dovecot by itself with fts plugin disabled works fine.

dovecot --version 2.3.19.1 (9b53102964)

The pattern we found is as follows

1. search with with attachments condition from RoundCube linked to dovecot
2. dovecot fts plugin executes the following query to solr but no document is found

hdr:application%5c%2f+OR+hdr:multipart%5c%2fm+OR+hdr:multipart%5c%2fsigned+OR+hdr:multipart%5c%2freport

...

3. roundcube search results also show no items found

That's all I have to report. If there is any way to improve the situation, we would like to receive it.

Please can you send output of doveconf -n and mail_debug=yes logs?

Aki