yeah, thanks. the unique email-address is a number-code-service-provider@mydomain.com and can't be guessed really. I thought that my system may have leaked suc

yeah, thanks. the unique email-address is a number-code-service-provider@mydomain.com and can't be guessed really. I thought that my system may have leaked such email-addresses, e.g. my own mail-server (horde), or apps uploaded my address book or browser add-ons or LastPass-hack to login with that email into the service provider.