Doveadm sync: Can't create mailbox mail_public/public: Permission denied if synchronize all the available namespaces

I have old dovecot server: (# 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 4.14.15-3.el7xen.x86_64 x86_64 CentOS Linux release 7.4.1708 (Core) and new dovecot server: # 2.3.1 (c5a5c0c82): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.deve

Doveadm: Skipping module doveadm_mail_crypt_plugin loading

# dovecot --version Doveadm unable to load plugin bacause plugin doveadm_mail_crypt_plugin.so not compiled with function mail_crypt_box_get_pvt_digests, who defned in mail-crypt-key.c Fix for these problem: dovecot_doveadm_mail_crypt_fix.diff: --- src/plugins/mail-crypt/Makefile.am.old