Exchange 2010 DNS Settings
The following DNS settings are needed for our Exchange 2010 setup.
MX 10 barracuda01.hosting.ca
MX 10 barracuda02.hosting.ca
CNAME mail.<yourdomain> autodiscoverredirect2.hosting.ca
CNAME autodiscover.<yourdomain> autodiscoverredirect2.hosting.ca
TXT v=spf1 a mx ip4:72.15.149.3/24 ip4:72.15.147.128/27 ip4:208.99.206.181/29 a:spamtitan.hosting.ca a:spamtitan2.hosting.ca include:hosting.ca -all
Change <yourdomain> to your full domain name. For example if your domain name is companyabc.com. The CNAME would be:
CNAME mail.companyABC.com autodiscoverredirect2.hosting.ca
CNAME autodiscover.companyABC.com autodiscoverredirect2.hosting.ca
We also highly suggest setting up DKIM as well to allow for better deliverability to remote mail servers.