We're using
doveadm -o imapc_user="$USER" -o imapc_password="$PASSWORD" -o imapc_host=$SERVER1 -o pop3c_user="$USER" -o pop3c_password="$PASSWORD" -o pop3c_host=$SERVER1 -D -v backup -R -u "$USER" imapc:
to migrate Mails from Courier to Dovecot.
We have some complaints on the old system that there are changes on the old system where delete mails are appearing again (IMAP) and/or mails are downloaded several times (POP3).
AFAIK there can't be changes on the old system if "backup -R" is used.
Or is there any situation where changes on the old system (where we connect with imapc) may happen?
Peer
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