We're using the IMAP components to connect our software to customer mailboxes and while it's been working fine for all, I've had a report in this morning from one particular customer that they get nothing but error messages back. I think it's something on their network (e.g. Firewall) but they've been running some tool from Microsoft that claims that everything is fine, Outlook can connect without any problems etc. They also claim to have checked their firewall to make sure that port 993 is open.
I've tried to connect using the customer's details and do indeed get an error out (verbose log below) but connecting to our own mailboxes or webmail (e.g. Gmail) is working absolutely fine. Having stepped through our code it looks to be failing when connecting and never even reaches the login stage.
asked Mar 03 '16 at 05:19
Never mind. I updated to the latest version of the IMAP component (v220.127.116.11) and it seemed to do the trick.
It seems that the customer had switched to Exchange 2013 and something in the configuration didn't sit well with v18.104.22.168
answered Mar 03 '16 at 06:21