A SBS 2003 R2 exchange there the ISP started to point mails last friday. Clients can send mail and fetch mail but https://mail.publicdomain.fi/exchange does not work Internally and externally only partially. I run CEIICW on Friday to have the certificate. This site haven't use Exchange before. The ISP did DNS change on Friday. This server has built apx two years ago.I haven't do anything for the DNS server.