Proxy Server Certificate Error Code 10
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Outlook Is Unable To Connect To The Proxy Server Error Code 20
IMAP Clients Question 0 Sign in to vote Hi, I am getting an error message when I started
Outlook Is Unable To Connect To The Proxy Server Error Code 10 Exchange 2013
the Outlook. The message is as follows, There is a problem with the proxy server's security certificate. The name on the security certificate is invalid or does not match
There Is A Problem With The Proxy Server's Security Certificate Error Code 10 Exchange 2013
the name of the target sitemail.abc-company.com. Outlook is unable to connect to the proxy server.(Error Code 10) I Use TMG 2010 as my proxy server for the internet andI need some help on this one to fix this. Can someone tll me how to fix this issue? Thanks Yosh,--------------------------------------------------------------------------------- YOSHIKA04 ------------------------------------------------------------------------------ Friday, March 25, 2011 5:23 AM Reply | Quote outlook is unable to connect to the proxy server error code 18 Answers 0 Sign in to vote Hello, Firstly, I would like to ask whether the symptom occurs on an Internal Outlook client or an external Outlook client. If it occurs on an External Outlook client, I think we are using Outlook Anywhere and we have to add the “mail.abc-company.com” to the domain names in the certificate. If the error occurs on Internal Outlook, we can workaround this issue by turning off “Outlook Anywhere” by: 1. On a problematic Client, open Outlook. 2. Click Tools >> Account settings. 3. Double click the profile name and click More Settings. 4. On the Connection tab, uncheck on “Connect to Microsoft Exchange using HTTP”. 5. Save the changes and restart the Outlook to check this issue. Thanks, Simon Marked as answer by Serena Li Sunday, April 03, 2011 3:44 PM Monday, March 28, 2011 1:48 AM Reply | Quote Moderator All replies 1 Sign in to vote You need a valid certificate on both the Exchange server and on the TMG server. How you
» Exchange 2013 certificate error: There is a problem with the proxy server's security certificate. Let's take a look at an issue where users there is a problem with the proxy server's security certificate error code 80000000 keep getting the following pop up in the outlook client frequently. There outlook is unable to connect to the proxy server error code 8 windows 7 is a problem with the proxy server's security certificate. The name on the security certificate is invalid or outlook is unable to connect to the proxy server error code 0 exchange 2013 does not match the name of the target site "server.domain.local" Outlook is unable to connect to the proxy server. (Error Code 10) Possibility 1: => On the user's machine launch https://social.technet.microsoft.com/Forums/exchange/en-US/980846f8-e616-4150-9f6a-eaa85f06a76d/outlook-gives-an-error-for-proxy-server-certificate?forum=exchangesvrclientslegacy Outlook=> Click File => Go to Account Settings. => Select the email account and then click Change. => Click the More Settings button. => Now click the Exchange Proxy Settings. => Copy the URL for "Only connect to the proxy servers that have this principle name in their certificate" & try to browse it. => You will get a certificate http://msexchangeguru.com/2015/10/02/error-code10/ error, click on the top red x mark next to the address bar. It will open a certificate. => Check the DNS names listed in the certificate & make a note of them. => Now go the Exchange Server, Launch Exchange Management Shell.' => Run the following command: Get-OutlookAnywhere => Look for the following options: ExternalHostname mail.domain.com InternalHostname mail.domain.local => Compare these two entries with the list of names we collected from the client machines certificate. => You will find that the internal host name is missing in the certificate. => To resolve this issue, we can run the following command to match the Internal Host name to the External host name as in the certificate SAN entry: Set-OutlookAnywhere -Identity "EXCH201301Rpc (Default Web Site)" -InternalHostname mail.domain.com -InternalClientsRequireSsl $true => Next run IIS reset or simply recycle the AutoDiscover AppPool in the IIS Manager. => This change will take effect soon after the user closes & reopens the outlook, however the default autodiscover refresh internal is 1 hour, so it's better to test after an hour or so. Pos
File after Error Code 10 Posted by: Lucy John Follow me: @Lucyy_John “Hi, I’m facing an error in Outlook whenever I open the application. The error says, ‘There is a problem with the proxy server’s security certificate. Outlook is unable to connect to this server (Error code 10).’ I’m not able to access the mail account due to this error. Can anyone please suggest me with proper methods to fix this Outlook error?” Most of the organizations make use of Microsoft Exchange Server to manage the mail accounts of all the employees in that organization. But, while connecting Outlook data file to Exchange Servers, many users encounter various error messages. One such error is Outlook error code 10 as mentioned above. There are other forms of this error message too, they are: There is a problem with the proxy server’s security certificate. The name on the security certificate is invalid or does not match the name of the target site. Outlook is unable to connect to this server (Error code 10). There is a problem with the proxy server security certificate. Outlook anywhere is unable to connect to proxy server (Error code 10). There is a problem with the proxy server’s security certificate. The security certificate is not from a trusted certifying authority. Outlook is unable to connect to this server (Error code 10). This Outlook error code 10 gets displayed due to reasons like: When there is Firewall issues in the network connectivity Using open DNS server Failure of security certificate validation Misconfiguration of Exchange server Use of un-trusted certification authority(CA) When Outlook is unable to connect to Exchange Server due to error code 10, then neither the application opens the Outlook PST file nor does synchronization of updated data gets completed. In such situations, the only method to resolve this error is to verify the validation of security certificate, Server configuration on the system and for proper network connectivity. Even then the same error repeats then make use of reliable PST repair tool and resolve the error. The most recommended utility to repair PST after Outlook error code 10 is Yodot Outlook PST Repair utility. This utility will repair Outlook PST file that shows error code 10 and placing it in new PST file without damaging the file contents. The tool is equipped with excellent repair strategies to fix various errors of Outlook PST file created on MS Office 2003, 2007, 2010 and 2013 Outlook versions. And also, t