Amavis release uses UNIX socket instead of inet tcp socket

I try to release an email out of the quarantine with Amavis-new using: sudo /usr/sbin/amavisd-release MAIL_ID SECRET_ID where MAIL_ID and SECRET_ID are ids found in the database table ‘quarantine’. I get the following error in bash: Can’t connect to UNIX socket /var/lib/amavis/amavisd.sock: No such file or directory at /usr/sbin/amavisd-release line 271. The contents of /etc/amavis/conf.d/25-amavis_helpers…

“apt install” didn’t work but “dpkg -i” did

I tried to port qemu-related packages (“qemu-system-data,”…etc.) from the Ubuntu disco to xenial. I downloaded the qemu-system-data package, extracted it, modified control file and then re-build it through dpkg-deb –build. When I tested it, strangely “apt install” always a success and tell me that 0 newly installed. Here is part of logs: ~$ sudo apt…