Quota: How/where to set/change

Hi experts. in the output of imapsync I found: Host2: found quota, presented in raw IMAP Sending: 7 GETQUOTAROOT INBOX Sent 22 bytes Read: * QUOTAROOT INBOX "User quota" * QUOTA "User quota" (STORAGE 420325 1953125) 7 OK Getquotaroot completed (0.001 + 0.000 secs). H

Mail replication fails between v2.2.27 and v2.3.4.1

Hello, I have two installations of dovecot configured to replicate mailboxes between them. recently, i upgraded the operating system on one of them (mx2.example.com) and now i'm running one installation on version 2.2.27 (debian stretch) and another on version 2.3.4.1 (mx1.example.com debian bust