An unknown error has occurred in Outlook - Microsoft Community


hello team,

got issue today, wherein getting error in outlook 2016 mac(15.33). whenever launch outlook takes 4-5mins launch , getting error message on screen "an unknown error has occurred in outlook".

troubleshooting performed:

created new outlook profile, , launch out delay. stucks sync pending folders , when tried send emails gets a new error "unexpected data encountered" able receive emails.

not sure, why happening?

have few questions

1) since when started happening?

2) have tried reverting previous version?

3) type of account it? exchange, o365 or imap/pop account?

4) if configure new profile , configure test account in new profile exhibit same error message? account might having corruption in inbox causing issue. may there lot of folders might cause of folders not getting synchronize here.

please share above detail can troubleshoot issue accordingly.




Office / Outlook / Mac / Office 2016 for Mac



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