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Exchange ActiveSync returned an HTTP 500 response (Internal Server Error).

Logged into https://testconnectivity.microsoft.com/

  • Exchange ActiveSync Autodiscover Works
  • Exchange ActiveSync Fails with

ERROR : Exchange ActiveSync returned an HTTP 500 response (Internal Server Error).

HTTP Response Headers:

request-id: 77d59597-44f7-4ed1-af30-464d3fb6991b

X-CalculatedBETarget: exch01.careexchange.in

MS-Server-ActiveSync: 15.0

X-MS-RP: 2.0,2.1,2.5,12.0,12.1,14.0,14.1

MS-ASProtocolVersions: 2.0,2.1,2.5,12.0,12.1,14.0,14.1

MS-ASProtocolCommands: Sync,SendMail,SmartForward,SmartReply,GetAttachment, GetHierarchy,CreateCollection,DeleteCollection,

MoveCollection,FolderSync,FolderCreate,FolderDelete, FolderUpdate,MoveItems,GetItemEstimate,

MeetingResponse,Search,Settings,Ping,ItemOperations, Provision,ResolveRecipients,ValidateCert

X-MS-BackOffDuration: L/-470

X-MS-Diagnostics: &Log=PrxFrom:fe80%3a%3a4548%3a7b1c% 3a2229%3ae899%2512_V120_HH:mail.careexchange.in_

SmtpAdrs:mathew.%40ng-solutions.ch_NMS1_Ssnf:T_St:F_Sk0_Srv: 16a0c0d0s0e0r0A0sd_Ers1_Cpo15124_Fet20015_



ufrHOiiIlN44dOwjQFuWFu8Od2e% 2bbP85IcKOtXrqwv%2bFrplYYRsIkpeL1%

X-DiagInfo: EXCH01

X-BEServer: EXCH01

Cache-Control: private

Content-Type: text/html; charset=utf-8

Set-Cookie: ClientId=9O0RXPEHO0SOADNYMKFGA; expires=Sun, 21-Aug-2016 05:28:41 GMT; path=/; HttpOnly,

X-BackEndCookie=S-1-5-21-3284623841- 172833404-3726105506-1144= u56Lnp2ejJqByMnIzM7InczSxprOyNLLypnO0

seemprSzsbPzZ2bysqazZ3IgYHNz87K0s /G0s3Oq8/Kxc3Gxc/N; expires=Mon, 21-Sep-2015 05:29:02 GMT; path

=/Microsoft-Server-ActiveSync; secure; HttpOnly

Server: Microsoft-IIS/8.5

X-AspNet-Version: 4.0.30319

X-Powered-By: ASP.NET

X-FEServer: EXCH01

Date: Sat, 22 Aug 2015 05:29:01 GMT

Content-Length: 6312

Elapsed Time: 20826 ms.


Open Active Directory users and Computers – View – Advanced features has to be checked.


User Properties –


Security TAB – Click on Advanced


Click on Enable Inheritance –

Inheritance is something where the above groups permissions which will be stopped applying to the end user object.

Enabling inheritance is approving/allowing the groups/objects above the user object


Choose yes.


Now Active Sync should be working —

Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.

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