Assuming you are utilizing Roadrunner email
on any outsider application like apple mail, windows mail application, Microsoft Outlook, Mozilla thunderbird, or email client then you want to set up your roadrunner email on IMAP or POP3 server with the goal that you can ready to send and accept your messages appropriately.
IMAP server settings-
For Incoming - mail.twc.com, incoming Port -993/SSL
For outgoing - mail.twc.com, outgoing Port -587/STARTTLS
POP3 server settings:
For Incoming - mail.twc.com, incoming Port -995/SSL
For outgoing - mail.twc.com, outgoing Port -465/SSL