We have a MS Exchange 2007 server running. In addtion we have another server in the same domain that runs the Web Help Desk (www.webhelpdesk.com
) software. This software connects to an e-mail account on the Exchange server and downloads messages every few minutes.
This has been working fine. We have an e-mail account called 'itsupport' and all e-mails sent to email@example.com and put into the help desk for technicians to deal with.
It has been set up as a POP3 connection using port 995. This has been running well for almost a year until a recently the help desk software stopped downloading the messages.
It does not seem to be authenticating with the Exchange server anymore.
I either get an error message of 'Authentication Failed' from the help desk if I set the port to 110 or an error of 'Unrecognized SSL message, plaintext connection?' if I set the port to 995.
We do have the POP3 service running on Exchange.
I have also tried connecting to an account using POP3 in Outlook but also get an error:
Log onto incoming mail server (POP3): The operation timed out waiting for a response from the receiving (POP) server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP). The server responded: -ERR Command is not valid in this state.