Windows Server 2008 R2.
mail server hMailServer, which is able to do authorization against AD.
1C-Bitrix, which is also knows AD/LDAP authentication.
Want to make a single database users to login on the website and in the mail were identical. He Windows domain we do not need, NTLM, too.
I create the AD record InetOrgPerson. Mail and website picked up.
Now the question is: what about licensing? Do we need to buy any additional CALS? Are there any restrictions on the number of entries in AD or through network connections?
PS anticipating messages like "put Linux" report that the level of s/n does not allow us to hire qualified personnel to service Linux.