[horde] ActiveSync not authenticating - 401 Unauthorized

[OnkelM]

Hello,

how is this happening? I made the following test request:

POST https://horde-host/Microsoft-Server-ActiveSync
> ?DeviceType=WP8&Cmd=Provision&DeviceId=12345678901
>
> HEADERS
>
> *Accept:* */*
>
> *Accept-Encoding:* gzip, deflate
>
> *Accept-Language:* de
>
> *Authorization:* Basic YWRtaW5Ab25rZWxtLmNvbTpCZDMwMDQ4NCM5NjQ0MA==
>
> *Cache-Control:* no-cache
>
> *Connection:* Keep-Alive
>
> *Content-Length:* 600
>
> *Content-Type:* application/vnd.ms-sync.wbxml
>
> *Host:* horde-host
>
> *Ms-Asprotocolversion:* 14.0
>
> *User-Agent:* runscope/0.1,ASOM
>
> *X-Ms-Policykey:* 0
> QUERYSTRING
>
> *Cmd:* Provision
>
> *DeviceId:* 12345678901
>
> *DeviceType:* WP8
> BODY
>
> <?xml version="1.0" encoding="utf-8" ?><Provision
>   xmlns="Provision:">
>   <DeviceInformation
>     xmlns="Settings:">
>     <Set>
>       <Model>RM-821_eu_euro2_248</Model>
>       <IMEI>imeiimeiimeiimeiimei</IMEI>
>       <FriendlyName>Lumia 920</FriendlyName>
>       <OS>Windows Phone 8.0.9903</OS>
>       <OSLanguage>German</OSLanguage>
>       <PhoneNumber>+0152xxxxxxxx</PhoneNumber>
>       <UserAgent>MSFT-WP/8.0.9903</UserAgent>
>       <EnableOutboundSMS>0</EnableOutboundSMS>
>     </Set>
>   </DeviceInformation>
>   <Policies>
>     <Policy>
>       <PolicyType>MS-EAS-Provisioning-WBXML</PolicyType>
>     </Policy>
>   </Policies></Provision>
>
>
And Horde is answering this:

 401 Unauthorized
>
HEADERS
>
> *Allow:* OPTIONS,POST
>
> *Cache-Control:* private, max-age=10800, pre-check=10800
>
> *Connection:* Keep-Alive
>
> *Content-Encoding:* gzip
>
> *Content-Type:* text/html
>
> *Date:* Mon, 08 Jun 2015 18:17:07 GMT
>
> *Expires:* Thu, 19 Nov 1981 08:52:00 GMT
>
> *Keep-Alive:* timeout=2, max=1000
>
> *Last-Modified:* Fri, 05 Jun 2015 15:28:26 GMT
>
> *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
>
> *Ms-Asprotocolversions:* 2.5,12.0,12.1,14.0,14.1
>
> *Ms-Server-Activesync:* 14.2
>
> *Public:* OPTIONS,POST
>
> *Server:* Apache
>
> *Set-Cookie:* PHPSESSID=8f3379819e428da3e5e28cf0b60c872c; path=/
>
> *Transfer-Encoding:* chunked
>
> *Vary:* Accept-Encoding
>
> *Www-Authenticate:* Basic realm="Horde ActiveSync"
> BODY
>
> (empty)
>
>

Why is Horde not accepting my login ?

When i use that same login to gon on the horde portal it works. Horde is
configured to use imp as authentication backend...