anyone please let me know what is mailbox record(mb record) and Mailgroup record(MG) can i managemailboxes through this if yes then how to manage and how to create this record mean what type information should i require for this?

MB, MG, MINFO, MR Records (mailbox records) Most Internet e-mail servers only support MX-records. Only use MB, MG, MINFO and MR records if you have specific requirements for these. To specify "mailbox" names, replace the e-mail address @ sign with a dot (.). MB-records (Mailbox) Maps a mailbox to a host (server). The host must be the same as a valid A-record already defined in the same zone. MG-records (Mail group member) Used to specify mail group members (one MG-record per member). Each member mailbox must be identical to a valid mailbox (MB-record). MINFO-records (Mailbox or mail list information) Specifies the mailbox of the responsible person and optionally a mailbox for errors for this mailbox or list. Each mailbox must be the same as a valid mailbox (MB-record) that already exist in the zone. MR-records (Renamed mailbox) Specifies a renamed mailbox. An MR-record can be used as a forwarding entry for a user who has moved to a different mailbox. To create a new mailbox record, right-click a zone in the left list in the DNS Records window, and select "Other new record" from the pop-up menu. These record types are defined in RFC1035. And those record is create inside DNS server.

Thanks Richard my scenario is that we have two exchange server in different location but i do not want to use between this child or forest and Routing etc. my 30 users are in NEW YORK and 150 in Florida, but my company domain is same is it possible that i create MB record for per user florida office and newyork office. when the sender sent email to newyork office employees can they receive emails through his MB record? is it possible? E.g for NEW YORK office Information Public IP Address: 192.168.168.168(MX Record) and email john@microsoft.com E.g. for Florida Office Information Public IP Address: 192.168.100.168(MX Record) and email mike@microsoft.com can they receive their emailsthrough MB records. if yes please let me know the way of creation of MB record. Regards, Appricate yours quick response

Adnan Khan Mughal wrote:Thanks Richard my scenario is that we have two exchange server in different location but i do not want to use between this child or forest and Routing etc. my 30 users are in NEW YORK and 150 in Florida, but my company domain is same is it possible that i create MB record for per user florida office and newyork office. when the sender sent email to newyork office employees can they receive emails through his MB record? is it possible? E.g for NEW YORK office Information Public IP Address: 192.168.168.168(MX Record) and email john@microsoft.com E.g. for Florida Office Information Public IP Address: 192.168.100.168(MX Record) and email mike@microsoft.com can they receive their emailsthrough MB records. if yes please let me know the way of creation of MB record. Regards, Appricate yours quick response

What are you really trying to accomplish here? Do you have an Exchange server in each location? DCs in each location? GCs in each location? Depending on your answer, there may be an easier way to accomplish what you want depending on what that is.

Yes we have two Domain Controller with two exchange server and both are forest and individual, but my company email domain is one just like Microsoft.com. we do not want to use a child domain for another office,

Yes, I think you can. name {ttl} addr-class MB Machine carol IN MB mail1.yourdomain.COM. It will direct "carol" email to the mail1.yourdomain.com server.

Even easier (if I understand the problem), just make each of the 2 DCs also GCs. Exchange will use the GCs to find the correct Exchange server with no extra work. Of course, you will still need an MX record for each Exchange server.