How to fix: Send / Receive Error 0x800ccc0b in Outlook 2016


I was recently troubleshooting a send / receive issue in Outlook 2016 on a client’s computer and found myself in what I like to call “no man’s land” — this is where I have tried all known fixes for an issue and have to start trial and error. The issue was with an Office 365 account and presented itself during the send / receive operation, throwing error code 0x800ccc0b. I tried all the usual suspects: starting Outlook in safe mode, turning off and on cached Exchange mode, online repair of Office, disabling Anti-Virus, etc. Nothing seemed to work. Googling error code 0x800ccc0b revealed this Microsoft forum post, but alas, I tried all suggestions there to no avail.

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Brian Dunham is a Cisco and Microsoft certified network and systems engineer with over a decade of experience in the Information Technology field. When he is not in front of a computer he can be found out in the wilderness canoing, hiking, fishing, or camping.