Hi guys,
For anyone who have this problem it could be related to routing MTU.
In my case I've found that a new router was breaking the mtu so big packet are fragmented and this cause stalled between the replicas.
Thank you for your time
Paolo

Il 13 luglio 2021 20:39:28 CEST, "Stefan Möding" <s.moeding@gmail.com> ha scritto:
Paolo Daniele <paolo.daniele@intendo.it> writes:

dsync-server(aaaaa@bbb.bb): Error: Timeout during state=sync_mails (send=done
recv=mails)

I experience the same errors in my setup.  It seems to happen in intervals
of "replication_full_sync_interval" for me.  Specifically if the "full
sync" time in the output of "doveadm replicator status '*'" reaches the
full sync interval time for multiple users.

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Inviato dal mio dispositivo Android con K-9 Mail. Perdonate la brevità.