Whatever methods discuss here is strictly applicable to Outlook Mac Error 3253. So don’t try to fiddle around with other versions as it may disable the basic functionality of the email account. On the contrary, you can also contact the professional on Outlook customer service for subtle assistance on the issue.
For more details: https://contactforhelp.com/blog/how-to-overcome-outlook-error-code-3253-on-mac-2016/