6 Replies Latest reply on Sep 13, 2018 8:16 AM by fluffy midnight

    Error processing mailbox messages: Unexpected end of ZLIB input stream

    rayd

      Hi all,

       

      Web Helpdesk has stopped retrieving messages from our mailbox and converting them to tickets.  This happened after we switched to a different mailbox, hosted in 365 rather than on-premises.  The old on-premises mailbox (which has a different address) is forwarding to the 365 mailbox to catch any updates to old tickets etc.

       

      If we enable notifications for incoming mail for when it can't connect to retrieve mail, we get flooded with mails with this error:

      Error processing mailbox messages: Unexpected end of ZLIB input stream

       

      The strange thing is the issues seems intermittent - we do see some content in Deleted Items so some mails are getting processed - there isn't a definite point when it stopped working completely.  I've tried moving aside the oldest couple of mails but it doesn't seem to have helped.  Any ideas?

       

      thanks

      Ray