Hello, Situation: I have already posted the same question to the office 365 forum http://community.office365.com/en-us/forums/170/t/73372.aspx I have configured an outlook ldap address book conection to one of our Active Directory server (windows 2008 R2 Enterprise Server) through LDAP Here is the link of the how-to https://helpdesk.wisc.edu/wiscmail/page.php?id=13789 When I open a mail and send a mail to a simple user the emails reaches the user. Problem: When I open a mail and send a mail to a distribution group (where the same users tested bevore are in) i get directly a message back to my outlook with the following text: _______________________________________________________________________________ Your message did not reach some or all of the intended recipients. Subject: to all Group Sent: 23.10.2012 15:28 The following recipient(s) cannot be reached: GR-Domain-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Domain-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Global-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Global-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Universal-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Universal-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. ___________________________________________________________________________ I have tried all combination of Distribution and even security groups. None of them are working What do I need to configure that Outlook can use the Groups in Microsoft AD as a distribution list? Many Thanks Roman

Roman, this appears to be more of an Exchange - rather than Active Directory issue (especially considering that your communication with AD appears to be working fine)- as that's where distribution groups are configurable (at least in the recent versions of Exchange). Refer to http://social.technet.microsoft.com/forums/en-US/category/exchangeserver/ hth Marcin

On Wed, 24 Oct 2012 07:04:46 +0000, 3E62A7ED-DDD2-4B4E-83BA-502357564608 wrote: >I have already posted the same question to the office 365 forum > >http://community.office365.com/en-us/forums/170/t/73372.aspx > > > >I have configured an outlook ldap address book conection to one of our Active Directory server (windows 2008 R2 Enterprise Server) through LDAP > >Here is the link of the how-to > >https://helpdesk.wisc.edu/wiscmail/page.php?id=13789 > > > >When I open a mail and send a mail to a simple user the emails reaches the user. > > > >Problem: > >When I open a mail and send a mail to a distribution group (where the same users tested bevore are in) i get directly a message back to my outlook with the following text: > >_______________________________________________________________________________ > >Your message did not reach some or all of the intended recipients. Subject: to all Group Sent: 23.10.2012 15:28 The following recipient(s) cannot be reached: GR-Domain-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Domain-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Global-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Global-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Universal-dist on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. GR-Universal-sec on 23.10.2012 15:28 None of your e-mail accounts could send to this recipient. ___________________________________________________________________________ > > > >I have tried all combination of Distribution and even security groups. None of them are working > > > >What do I need to configure that Outlook can use the Groups in Microsoft AD as a distribution list? Have you contacted your help desk or Exchange admin? Do you have permission to send to those distribution groups? If you're using Outlook with an LDAP address book you're probably using SMTP to send the message. If that's so you should probably be using port 587 to send the messages, not port 25. Using port 587 requires you to authenticate with your SMTP server. How your admin has things configured is up to him to tell you. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

you have permission blocked at distribution group level. add yourself to allow send.Regards, Prabhat Nigam XHG and AD Architect and DR Expert Website: msexchangeguru.com VBC: https://www.mcpvirtualbusinesscard.com/VBCServer/wizkid/card

Hi Roman, I think you need to check whether these groups are mail enabled group or not. If these groups are not mail enabled group, you cannot send emails to that groups. Thanks, EvanEvan Liu TechNet Community Support