user gets error code BE-326B trying to login Webmail

Issue: customer called and complained getting error code BE-326B
trying to login to webmail via https://OWAExternalURL/owa
synopsis: This error is security related. Customer is likely logged in from multiple systems/browsers. In trying to login again, the siteminder detects multiple IP addresses for the sasme login. That triggers a security alert whichi gives the BE-326B error.
resolution: Inform user to close browser and open it again. That resolves the issue