Do I need any option, to move matching emails to a subfolder of the inbox?
My /etc/dovecot/conf.d/10-mail.conf:
namespace inbox {
inbox = yes
}
And the /srv/vmail/spam-global.sieve:
if address "From" "monitoring@example.com" {
fileinto "INBOX.Monitoring";
}
This configuration is currently creating a new main folder "INBOX.Monitoring" instead of an INBOX subfolder "Monitoring".
Try /
as parent-child separator: "INBOX/Monitoring"