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OWA-Zugriff führt zu Umleitungsfehler

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Hallo,

auf unserem Exchange 2016 (läuft auf Windows Server 2016) schlägt der OWA-Zugriff mit einem Umleitungsfehler fehl, ECP und ActiveSync funktionieren jedoch.

Die letzte im Browser agezeigte URL ist https://<EXCH-Name_Intern>:444/owa/auth/errorFE.aspx?httpCode=404, d.h. nach der Anmeldung und dem Übergang zum Backend versucht der OWA die Anfrage auf die interne URL umzuleiten. Interessanterweise kommt es allerdings auch beim Zugriff auf aus dem internen Netz zu einem Umleitungsfehler.

Im IIS-Log findet man dazu:

2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/logon.aspx url=https://<EXCH-Name_Intern>:444/owa/&reason=0&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 235
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 36
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 35
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 34
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 36
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 33
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 35
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 35
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 38
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 39
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 34
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 29
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 32
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 29
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 29
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 30
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 31
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 30
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 140
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 32
2020-06-29 11:05:46 192.168.50.205 GET /owa/auth/errorFE.aspx httpCode=404&ClientId=363A272D33674A7E940BDCE8F70901E9&ClientRequestId=&ActID=&CorrelationID=<empty>&ex=E409 444 - 192.168.50.254 Mozilla/5.0+(Windows+NT+10.0;+Win64;+x64;+rv:77.0)+Gecko/20100101+Firefox/77.0 https://<EXCH-Name_Extern>/owa/auth/logon.aspx?replaceCurrent=1&url=https%3a%2f%2f<EXCH-Name_Extern>%2fowa%2f 302 0 0 69

Da wir einen Split-DNS betreiben sollten die interne und externe URL jedoch identisch sein.

Die virtuellen Directories des Exchange-Servers legen das auch nahe:

Server                        : SRV-EXCHANGE
Name                          : OAB (Default Web Site)
ExternalUrl                   : https://mail.externe-domäne/OAB
InternalUrl                   : https://mail.externe-domäne/OAB
BasicAuthentication           : False
WindowsAuthentication         : True
OAuthAuthentication           : True
InternalAuthenticationMethods : {WindowsIntegrated, OAuth}
ExternalAuthenticationMethods : {WindowsIntegrated, OAuth}

Server                        : SRV-EXCHANGE
Name                          : EWS (Default Web Site)
ExternalUrl                   :
InternalUrl                   : https://srv-exchange.interne-domäne/EWS/Exchange.asmx
CertificateAuthentication     :
InternalAuthenticationMethods : {Ntlm, WindowsIntegrated, WSSecurity, OAuth}
ExternalAuthenticationMethods : {Ntlm, WindowsIntegrated, WSSecurity, OAuth}
LiveIdNegotiateAuthentication :
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : False
DigestAuthentication          : False
WindowsAuthentication         : True
OAuthAuthentication           : True
AdfsAuthentication            : False

Server                        : SRV-EXCHANGE
Name                          : ecp (Default Web Site)
ExternalUrl                   : https://mail.externe-domäne/ecp
InternalUrl                   : https://mail.externe-domäne/ecp
InternalAuthenticationMethods : {Basic, Fba}
BasicAuthentication           : True
WindowsAuthentication         : False
DigestAuthentication          : False
FormsAuthentication           : True
LiveIdAuthentication          : False
AdfsAuthentication            : False
OAuthAuthentication           : False
ExternalAuthenticationMethods : {Fba}

Server                             : SRV-EXCHANGE
Name                               : Rpc (Default Web Site)
ExternalHostname                   : mail.externe-domäne
InternalHostname                   : srv-exchange.interne-domäne
ExternalClientAuthenticationMethod : Basic
InternalClientAuthenticationMethod : Ntlm
IISAuthenticationMethods           : {Basic, Ntlm, Negotiate}

Server                        : SRV-EXCHANGE
Name                          : owa (Default Web Site)
ExternalUrl                   : https://mail.externe-domäne/owa
InternalUrl                   : https://mail.externe-domäne/owa
ClientAuthCleanupLevel        : High
InternalAuthenticationMethods : {Basic, Fba}
BasicAuthentication           : True
WindowsAuthentication         : False
DigestAuthentication          : False
FormsAuthentication           : True
LiveIdAuthentication          : False
AdfsAuthentication            : False
OAuthAuthentication           : False
ExternalAuthenticationMethods : {Fba}

Server                        : SRV-EXCHANGE
Name                          : mapi (Default Web Site)
ExternalUrl                   :
InternalUrl                   : https://mail.externe-domäne/mapi
IISAuthenticationMethods      : {Ntlm, OAuth, Negotiate}
InternalAuthenticationMethods : {Ntlm, OAuth, Negotiate}
ExternalAuthenticationMethods : {Ntlm, OAuth, Negotiate}

An welcher Stelle sollte ich ansetzen um die Fehlerursache eingzugrenzen ?

Grüße

Tobias

Dienstag, 30. Juni 2020 10:51

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Hallo Tobias,

vielleicht helfen Dir die Artikel weiter:

Unable to access ECP in Exchange 2016

Exchange 2013 ECP Login fails HTTP 404 Requested URL: /owa/auth/logon.aspx

Exchange Autodiscover – A Guide to Making Exchange Work Properly

Exchange 2013 Unable to access ECP Encounter “500 Unexpected Error”

Gruß

Mihaela
Bitte haben Sie Verständnis dafür, dass im Rahmen dieses Forums, welches auf dem Community-Prinzip „IT-Pros helfen IT-Pros“ beruht, kein technischer Support geleistet werden kann oder sonst welche garantierten Maßnahmen seitens Microsoft zugesichert werden können.

Sonntag, 5. Juli 2020 12:31

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wir haben das gleiche Problem und auch noch keine Lösung
Chris

Montag, 6. Juli 2020 07:13

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