Hi everyone. When I installed my cyrus imap (3.0.17) server I use sync_client to make two slaves Master -- sync_client --> slave 1 -- sync_client --> slave 2 but since the beginning I very got a lot of problem with this sync. Sometime it will be working fine during 1 month , then it will crash every 8 - 10 hours. Currently since 20 days my sync_client crash regularly, I've no idea why. I got notice/error like Jan 19 10:20:37 FQDN sync_client[56922]: Error in do_sync(): bailing out! The remote Server(s) denied the operation Jan 19 10:21:27 FQDN sync_client[56922]: MAILBOX received NO response: Unknown error Jan 19 10:21:27 FQDN sync_client[56922]: Error in do_sync(): bailing out! The remote Server(s) denied the operation Jan 19 10:21:39 FQDN sync_client[56922]: IOERROR: zero length response to MAILBOX (end of file reached) Jan 19 10:21:39 FQDN sync_client[56922]: Error in do_sync(): bailing out! Bad protocol Jan 19 10:56:03 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN1 35038 (5495723713e3383847128719f3ff4a7e54fd3922) Jan 19 10:56:03 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN1 35039 (39fcbeec876749c45a7a4ae5fa1ae7a1453b8454) Jan 19 10:56:03 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN1 35038 (5495723713e3383847128719f3ff4a7e54fd3922) Jan 19 10:56:03 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN1 35039 (39fcbeec876749c45a7a4ae5fa1ae7a1453b8454) Jan 19 10:56:16 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN2 383918 (45ae38b4a5ce001aa642d76224e9eac2bdf07775) Jan 19 10:56:16 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN2 383918 (45ae38b4a5ce001aa642d76224e9eac2bdf07775) Jan 19 10:57:10 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN3 60893 (075af2111ff386f4bc73cc10b41cb83b3d800a63) Jan 19 10:57:10 FQDN sync_client[49408]: SYNCERROR: only exists on master user.LOGIN3 60893 (075af2111ff386f4bc73cc10b41cb83b3d800a63) Anyone have any idea ? Beside this problem, what are the actual advantage between sync_client and some classique zfs snapshot MAILBOX zfs send SNAPSHOT --> other server ? Knowning my slave are unable to perform as master (because they don't have ssd for the db). Regards -- Albert SHIH 🦫 🐸 Observatoire de Paris France Heure locale/Local time: jeu. 19 janv. 2023 10:48:32 CET ------------------------------------------ Cyrus: Info Permalink: https://cyrus.topicbox.com/groups/info/T53c2478c4334b3ea-Mc2319e6d485db8f870469d6b Delivery options: https://cyrus.topicbox.com/groups/info/subscription