Following an upgrade from v7.5 to 8sp1 we have started to receive multiple warning events with event id 3384
The following item has been copied in the mailbox but it could not be updated in the archive.
Mailbox: /o=SAUGOV/ou=SITE01/cn=Recipients/cn=bloggsj
Folder: \inbox\stuff
Title: mail stuff
Reason: <0x80040302>
At the same time we are getting a build up of messages in the A6 queue which is gradually going down(slowly)
Any idea what is happening
thanks in advance