Mark Constable writes:
I've got a screenshot of the error so I'll manually type it in here...Task 'Syncronizing subscribed folders for user@domain' reported error (0x800CCC0E): 'Outlook cannot synchronize subscribed folders for user@domain. Error: Cannot connect to the server. If you continue to receive this message, contact your server administrator or ISP. I think I am seeing way too many of these but it's hard to nail down which user belongs to which IP when a lot of them are dynamic... May 18 10:37:12 s1 courieresmtpd: error,relay=::ffff:xx.xx.xx.xx,msg="502 ESMTP command error",cmd: DATA There is not a lot in the logs to go by. courier-mta 0.73, imap 4.15
The SMTP error message would not have anything to do with the client's failure to talk IMAP. That's a dead end. Unless, for some reason, the client makes an smtp connection, for some reason.
It's true that there's not a lot to go by. In fact, without the actual error being shown – the actual error message, instead of meaningless dribble like "error 0x800CCC0E" – the only party here who could possibly know the answer is Microsoft.
The only way this can be investigated further, is have a controlled environment with IMAGDEBUGFILE turned on, to capture what the client is sending, and what the response is.
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