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3 Messages

Thursday, April 16th, 2015 11:00 AM

Autodiscover.xml 404 error

We had an interesting problem start up this morning when trying to access emails through outlook and the comcast exchange servers.  After doing some trouble shooting through https://testconnectivity.microsoft.com we found we are getting a 404 error.  The specific text is below

 

The Microsoft Connectivity Analyzer is attempting to retrieve an XML Autodiscover response from URL https://xxxxxxx.com:443/Autodiscover/Autodiscover.xml for user

 

 
A Web exception occurred because an HTTP 404 - NotFound response was received from Unknown.
HTTP Response Headers:
Pragma: no-cache
Vary: Accept-Encoding,User-Agent
Connection: close
Transfer-Encoding: chunked
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Content-Type: text/html; charset=utf-8
Date: Thu, 16 Apr 2015 16:36:30 GMT
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Last-Modified: Thu, 16 Apr 2015 16:36:30 GMT
Set-Cookie: sid_customer_65ad0=31255ae849cfc2a467ab901208d675a1_1_C; expires=Thu, 30-Apr-2015 16:36:30 GMT; path=/; domain=.domain.com; HttpOnly
Server: Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4
X-Powered-By: PHP/5.4.35
Elapsed Time: 648 ms.

 

 

 

We have gone into the business portal to double check all of the settings to make sure they match the WHM panel in case something had changed but everything it good.

 

I ran a trace in mx tools with the autodiscover.ourdomain.com which traces to autodiscover-rd.w14d.comcast.net which matches the DNS settings in our portal.

 

Webmail works fine which is pointing us to some sort of configuration problem on the comcast exchange server.   Has anyone else ran into this, if so how did you get it resolved?

 

Thanks

Accepted Solution

New Member

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3 Messages

9 years ago

Here are the DNS records,

 

208.115.238.202 is from United States (US) in region North America
Input: corksport.com
canonical name: corksport.com
Registered Domain: corksport.com


Retrieving DNS records for corksport.com...

DNS servers
ns1.corksport.com [208.115.238.202]
ns2.corksport.com [208.115.238.202]


Answer records
corksport.com MX
preference:10
exchange:mx01.biz.comcast.net
14400s
corksport.com MX
preference:50
exchange:mx02.biz.comcast.net
14400s
corksport.com MX
preference:50
exchange:mx03.biz.comcast.net
14400s
corksport.com TXTv=spf1 ip4:198.154.229.148 ip4:184.172.165.18 ip4:184.173.239.119 ip4:184.173.215.188 a mx ip4:50.116.85.195 include:websitewelcome.com ~all900s
corksport.com SOA
server:ns1.corksport.com
email:baker@corksport.com
serial:2015041605
refresh:86400
retry:7200
expire:3600000
minimum ttl:86400
86400s
corksport.com NS ns2.corksport.com86400s
corksport.com NS ns1.corksport.com86400s
corksport.com A208.115.238.202900s

Authority records

Additional records
ns1.corksport.com A208.115.238.202900s
ns2.corksport.com A208.115.238.202900s

Accepted Solution

New Member

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3 Messages

9 years ago

And one last thing,

 

If I run https://mail.corksport.com/autodiscover/autodiscover.xml I was able to confirm via the SSL is it going to the following domains

 

mail.w14d.comcast.net, autodiscover-rd.w14d.comcast.net, autodiscover.w14d.comcast.net, ch2imap.w14d.comcast.net, ch2mail.w14d.comcast.net, ch2pop.w14d.comcast.net, ch2webmail.w14d.comcast.net, imap.w14d.comcast.net, pop.w14d.comcast.net, w14dlbch2.w14d.comcast.net, w14dlbwc.w14d.comcast.net, wcimap.w14d.comcast.net, wcmail.w14d.comcast.net, wcpop.w14d.comcast.net, wcwebmail.w14d.comcast.net, webmail.w14d.comcast.net, www.w14d.comcast.net  

 

 

Accepted Solution

Advocate

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1.4K Messages

9 years ago

Hello Daspion and welcome,

 

What version of Outlook are you using? Also, what default browser does this computer use?  It may be necessary for you to clear your browser's cache and cookies, because the error message is not seeing any cache required entries. This HPPT 404 error points to browser issue.