POP- Account Type
Username: Your Rackspace email username
Password: Your Rackspace email account’s password.
995 is the port number
Server Host name:- pop.gmail.com, because I am using gmail account.
SSL/TLS: Yes, secure.emailsrvr.com
Authentication is required for verification.
Read more here:- https://www.datarecovo.com/setup-and-sync-rackspace-email-with-outlook/
See Also this post:- https://www.datarecovo.com/apps-rackspace-webmail-login/
Server settings
The following server settings provide a secure connection by using Secure Sockets Layer (SSL):
Protocol SSL server name SSL port number
POP3 (incoming) secure.emailsrvr.com 995
IMAP (incoming) secure.emailsrvr.com 993
SMTP (outgoing) secure.emailsrvr.com 465
Regards, Bruce