dovecot sync not pushing automatically ?

[Laura Smith]

Hi,
I'm aware its an async process, but despite sending test messages and then waiting a few minutes, the stats are still unchanged :

$ sudo doveadm replicator status                                                                                                                                                                                            
Queued 'sync' requests        0                                                                                                                                                                                                     
Queued 'high' requests        0                                                                                                                                                                                                     
Queued 'low' requests         0                                                                                                                                                                                                     
Queued 'failed' requests      0                                                                                                                                                                                                     
Queued 'full resync' requests 0                                                                                                                                                                                                     
Waiting 'failed' requests     0                                                                                                                                                                                                     
Total number of known users   18

However if I manually run it using :
sudo doveadm -D sync -u test at example.com -1 -d -N -l 30 -U

It syncs fine and the mails are visible on the standby server.

The master server is setup as per the docs :
replication_dsync_parameters = -1 -d -N -l 30 -U
plugin {
mail_replica = tcps:foobar.example.com:11867
}
service replicator {
  process_min_avail = 1
}
service aggregator {
  fifo_listener replication-notify-fifo {
    user = foobar
  }
  unix_listener replication-notify {
    user = foobar
  }
}
service replicator {
  unix_listener replicator-doveadm {
    mode = 0600
    user = foobar
  }
}
replication_max_conns = 10