If you are configuring a domain on Google Apps  and the domain name server for that domain is running on BIND just add this records to the zone file. Just change "change.me"  to yourdomain.us. change.me. 1H IN MX 1 ASPMX.L.GOOGLE.COM. change.me. 1H IN MX 5 ALT1.ASPMX.L.GOOGLE.COM. change.me. 1H IN MX 5 ALT2.ASPMX.L.GOOGLE.COM. change.me. 1H IN MX 10 ALT3.ASPMX.L.GOOGLE.COM. change.me. 1H IN MX 10 ALT4.ASPMX.L.GOOGLE.COM.

If you are configuring a domain on Office365 and the domain name server for that domain is running on BIND just add this records to the zone file. Just change "change.me" and "change-me" to yourdomain.us and youdomain-us change.me 3600s IN MX 0 change-me.mail.protection.outlook.com. change.me IN TXT "v=spf1 include:spf.protection.outlook.com -all" autodiscover.change.me IN CNAME autodiscover.outlook.com. msoid.change.me IN CNAME clientconfig.microsoftonline-p.net. _sip._tls.change.me IN SRV 100 1 443 sipdir.online.lync.com. _sipfederationtls._tcp.change.me IN SRV 100 1 5061 sipfed.online.lync.com. sip.change.me IN CNAME sipdir.online.lync.com. lyncdiscover.change.me IN CNAME webdir.online.lync.com. enterpriseregistration.change.me 1h IN CNAME enterpriseregistration.windows.net. enterpriseenrollment.change.me 1h IN CNAME enterpriseenrollment.manage.microsoft.com.