couldn't be resolved in DNS InfoDomainNonexistent

My incoming mail was working. Now its not.  nothing has change in my webnames DNS setting. I am not sure where the problem is.

autodiscover.Domain.ca. A 207.6.11.24



Domain.ca. NS ns2.webnames.ca.



Domain.ca. NS ns3.webnames.ca.



Domain.ca. NS ns1.webnames.ca.



Domain.ca. MX (5) s207-6-11-24.bc.hsia.telus.net.



ftp.Domain.ca. CNAME Domain.ca.



mail.Domain.ca. A 207.6.11.24


www.Domain.ca. CNAME Domain.ca.

	Testing inbound SMTP mail flow for domain krystle@domain.ca.
	The Microsoft Connectivity Analyzer failed to test inbound SMTP mail flow.
	Test Steps   Attempting to retrieve DNS MX records for domain chrysalid.ca.   One or more MX records were successfully retrieved from DNS.   Additional Details Testing Mail Exchanger s207-6-11-24.bc.hsia.telus.net.   One or more SMTP tests failed for this Mail Exchanger.   Test Steps   Attempting to resolve the host name s207-6-11-24.bc.hsia.telus.net in DNS.   The host name couldn't be resolved.    <label for="testSelectWizard_ctl12_ctl06_ctl01_ctl00_tmmArrow">Tell me more about this issue and how to resolve it</label>   Additional Details   Host s207-6-11-24.bc.hsia.telus.net couldn't be resolved in DNS InfoDomainNonexistent.