Exchange 2019 DNS Settings
The following DNS settings are needed for our Exchange 2019 setup.
MX 10 barracuda01.hosting.ca
MX 10 barracuda02.hosting.ca
CNAME webmail.<yourdomain> POINTS TO exchange.hosting.ca
TXT v=spf1 a mx ip4:22.214.171.124/24 ip4:126.96.36.199/27 ip4:188.8.131.52/29 a:spamtitan.hosting.ca a:spamtitan2.hosting.ca include:hosting.ca -all
SRV _autodiscover._tcp SRV 0 0 443 exchange.hosting.ca.
In your DNS zone editor add a SRV record with the following information:
Name Enter one of the following values:
@if your registered domain is your cloud-based domain. For example, if your registered domain is companyABC.com enter
0 (or as per your design)
Weight 0 (or as per your design)
TTL Verify that an appropriate TTL is selected, 1 hour is a common default. (If you are approaching a migration, this should be decremented to allow for quicker cutover)
Change <yourdomain> to your full domain name. For example if your domain name is companyabc.com. The CNAME would be:
CNAME webmail.companyABC.com POINTS TO exchange.hosting.ca