RE: 2.3 replication issue throwing errors

> -----Original Message-----
> From: Paul Kudla via dovecot <[email protected]>
> Sent: Friday, February 20, 2026 6:48 AM
> To: Dovecot Mailing List <[email protected]>
> Subject: 2.3 replication issue throwing errors
> 
> 
> shows same error on both servers
> 
> Server 1 :
> 
> # sync [email protected]
> doveadm([email protected])<90952><BJq9J2dHmGlIYwEA0dxyZQ>: Warning:
> Mailbox
> changes caused a desync. You may want to run dsync again: Remote lost
> mailbox GUID f982a82747469869ea0f0100cf58dcff (maybe it was just
> deleted?)
> 
> Server 2:
> 
> # sync [email protected]
> doveadm([email protected])<90952><BJq9J2dHmGlIYwEA0dxyZQ>: Warning:
> Mailbox
> changes caused a desync. You may want to run dsync again: Remote lost
> mailbox GUID f982a82747469869ea0f0100cf58dcff (maybe it was just
> deleted?)
> 
> 
> i am aware there is a mismatch on one of the servers but there does not
> seem to be a clear cut way to find the offending file to delete it or
> force a backwards sync ?
> 
> How would i identify what GUID f982a82747469869ea0f0100cf58dcff
> means?
> 
> same on both servers.
> 
> doveadm force-resync -u [email protected] '*'
> 
> have tried reindex etc etc etc issue persists
> 
> logs ??
> 
> mail18       02-20 06:45:24 {dovecot}        [67632] (3014654310)
> doveadm([email protected])<71073><hOl0ClRJmGmhFQEAz1jc/w>: Debug:
> open(/proc/self/stat) failed: No such file or directory
> mail18       02-20 06:45:24 {dovecot}        [67632] (3014654311)
> doveadm([email protected])<71073><hOl0ClRJmGmhFQEAz1jc/w>: Debug:
> open(/proc/self/io) failed: No such file or directory
> mail18       02-20 06:45:24 {dovecot}        [67632] (3014654312)
> doveadm([email protected])<71073><hOl0ClRJmGmhFQEAz1jc/w>: Debug:
> Namespace
> inbox: type=private, prefix=, sep=/, inbox=yes,
> 
> hidden=no, list=yes, subscriptions=yes location=maildir:~/
> 
> 
> any help would be appreciated
> 
> --
> 
> 
> Thanks - Paul Kudla (Manager SCOM.CA Internet Services Inc.)
> 
> Have A Happy Friday AND Happy Sucessful 2026 !
> 
> Scom.ca Internet Services <http://www.scom.ca>
> 104-1009 Byron Street South
> Whitby, Ontario - Canada
> L1N 4S3
> 
> Toronto 416.642.7266
> Main 1.866.411.7266
> Fax 1.888.892.7266
> Email [email protected]
> 

This command should at least tell you which mail folder exhibits the issue

# doveadm mailbox status -u "[email protected]" guid "*" | grep f982a82747469869ea0f0100cf58dcff

Once you know the mailbox folder/name, look at the stats and drill down from there. Let's say the folder name is 'Saved Notifications'

# doveadm mailbox status -u "[email protected]" all "Saved Notifications" 

-- Doug

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