Hi, Not sure if this is a ispconfig problem, highly unlikely but I thought I would put it out there. When a user adds an email account on a current version of outlook client it works fine. Noting that the email server is the latest ispconfig .... If you delete the email account on the outlook client and then try to then re-add the email account, outlook will not connect to the server anymore. It will work with the ip but not the domain name. You can add new email accts with the same domain, but FFS, not the same email acct! The deleted acct will still work on other clients, just not on the same outlook client. Any suggestions would be appreciated. I have deleted all app datafiles, tried a new outlook profile. I am out of ideas?