Hi @VTexan ,
Welcome to our forum!
Do you mean that you have a Spectrum account and want to configure it as IMAP in Outlook desktop client?
If so, i notice that the issue is more related to the Spectrum Email account, please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client and know little about Spectrum email account.
Based on my research, i found an article which introduces how to add Spectrum Email account as POP/IMAP to Outlook. Considering there're some recent changes about your Spectrum Email account, just like "which is a IMAP system with new server settings", it is suggested that you could try to create a new profile(Control Panel>Mail>Show Profiles>add) firstly and then refer to this article to add your Spectrum Email account as IMAP to Outlook client: A Guide to Spectrum Email Settings for Outlook: Seamless Integration Made Simple.
(Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.)
Hope to help you!
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