[RCU] How to fix "Failed to send UID SEARCH command" when running in Docker container?

[Reiner Buehl]

Hi all,

when trying to search in large mail folders, I get an error popup 
"Server Error: Failed to send UID SEARCH command". Googling around I 
found a hint that this might be related to the default_socket_timeout 
value in php.ini. I use the Roundcube container version and don't know 
how to change this parameter there. Can you help me with some hints on 
how to fix the issue?

Best regards,
Reiner