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Configure attachment size OWA Exchange 2013

Posted on 2014-09-23
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Last Modified: 2014-09-24
I have recently installed an Exchange Server 2013.
I have setup in all Send and Receive connectors a maximum message size of 100MB, through the EAC.
That works fine for Outlook.

However, in OWA, when trying to attach anything larger than 5MB, I get:
"The following files weren't attached because adding them would cause the message to exceed the maximum size limit of 5 MB"

I found this article explaining how to change the message and attachment size limit for OWA, using notepad (really) to edit manually 27 (yes, 27!!) entries in a bunch of config files.
http://technet.microsoft.com/en-us/library/hh529949.aspx
I went thoroughly through all of them, changed them, and rechecked each one.
I ran a IISRESET after that.
I still have the problem.

I don't know where that '5MB' limit is coming from, but threre wasn't anything in the config files set to 5MB before the change (they were settings to 10MB, 35MB and 64MB, I think) so I'd guess this limit is coming from yet another location that I didn't find yet.
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Question by:DFUYT
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7 Comments
 
LVL 16

Expert Comment

by:Joshua Grantom
ID: 40339757
Go to Exchange Management Shell, and type the following command:

Set-transportconfig -MaxSendSize: 100000

OWA does not know how to interpret Unlimited values.

or

Go into "Organizational Transport Settings" and change "Maximum receive message size" and "Maximum send message size" to 100 mb
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LVL 12

Expert Comment

by:Vaseem Mohammed
ID: 40339823
run these cmdlets from Exchange management shell and see what results you get.
get-receiveconnector | foreach{$_ | select Name,Maxmessagesize}
get-sendconnector | foreach{$_ | select Name, MaxMessageSize}
get-transportconfig | select MaxReceiveSize, MaxSendSize
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Author Comment

by:DFUYT
ID: 40339870
I'm sorry, I had already setup that limit, I wasn't clear about that.
I checked using
Get-TransportConfig | fl  
and this is the output:

AddressBookPolicyRoutingEnabled                             : False
AnonymousSenderToRecipientRatePerHour                       : 1800
ClearCategories                                             : True
ConvertDisclaimerWrapperToEml                               : False
DSNConversionMode                                           : UseExchangeDSNs
JournalArchivingEnabled                                     : False
ExternalDelayDsnEnabled                                     : True
ExternalDsnDefaultLanguage                                  :
ExternalDsnLanguageDetectionEnabled                         : True
ExternalDsnMaxMessageAttachSize                             : 10 MB (10,485,760 bytes)
ExternalDsnReportingAuthority                               :
ExternalDsnSendHtml                                         : True
ExternalPostmasterAddress                                   :
GenerateCopyOfDSNFor                                        : {}
HygieneSuite                                                : Standard
InternalDelayDsnEnabled                                     : True
InternalDsnDefaultLanguage                                  :
InternalDsnLanguageDetectionEnabled                         : True
InternalDsnMaxMessageAttachSize                             : 10 MB (10,485,760 bytes)
InternalDsnReportingAuthority                               :
InternalDsnSendHtml                                         : True
InternalSMTPServers                                         : {}
JournalingReportNdrTo                                       : <>
LegacyJournalingMigrationEnabled                            : False
LegacyArchiveJournalingEnabled                              : False
LegacyArchiveLiveJournalingEnabled                          : False
RedirectUnprovisionedUserMessagesForLegacyArchiveJournaling : False
RedirectDLMessagesForLegacyArchiveJournaling                : False
MaxDumpsterSizePerDatabase                                  : 18 MB (18,874,368 bytes)
MaxDumpsterTime                                             : 7.00:00:00
MaxReceiveSize                                              : 100 MB (104,857,600 bytes)
MaxRecipientEnvelopeLimit                                   : 500
MaxRetriesForLocalSiteShadow                                : 2
MaxRetriesForRemoteSiteShadow                               : 4
MaxSendSize                                                 : 100 MB (104,857,600 bytes)
MigrationEnabled                                            : False
OpenDomainRoutingEnabled                                    : False
RejectMessageOnShadowFailure                                : False
Rfc2231EncodingEnabled                                      : False
SafetyNetHoldTime                                           : 2.00:00:00
ShadowHeartbeatFrequency                                    : 00:02:00
ShadowMessageAutoDiscardInterval                            : 2.00:00:00
ShadowMessagePreferenceSetting                              : PreferRemote
ShadowRedundancyEnabled                                     : True
ShadowResubmitTimeSpan                                      : 03:00:00
SupervisionTags                                             : {Reject, Allow}
TLSReceiveDomainSecureList                                  : {}
TLSSendDomainSecureList                                     : {}
VerifySecureSubmitEnabled                                   : False
VoicemailJournalingEnabled                                  : True
HeaderPromotionModeSetting                                  : NoCreate
Xexch50Enabled                                              : True

Just in case, I also checked in "Organizational Transport Settings" and both "Maximum receive message size" and "Maximum send message size" showed up as 100 MB.

Just in case, I did another iisreset, but the problems continued.
I checked from IE, Chrome and Firefox, from 2 different computers.
I can attach things up to 5MB but when I go beyond that limit, either with one or the sum of attachments, I will get that error message.
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Author Comment

by:DFUYT
ID: 40339879
I ran all the commands suggested by :

get-receiveconnector | foreach{$_ | select Name,Maxmessagesize}
get-sendconnector | foreach{$_ | select Name, MaxMessageSize}
get-transportconfig | select MaxReceiveSize, MaxSendSize

and each value returned was 100MB
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LVL 16

Accepted Solution

by:
Joshua Grantom earned 500 total points
ID: 40339932
you need to restart the exchange server, not just IIS.

You may be able to get away with restarting the "Exchange Information Store" service instead of the entire machine.
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LVL 12

Expert Comment

by:Vaseem Mohammed
ID: 40339938
The link that you refered http://technet.microsoft.com/en-us/library/hh529949.aspx under Outlook Web App section some of the size is mentioned in bytes and kilobytes, did you convert the value correctly?
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Author Closing Comment

by:DFUYT
ID: 40341532
In the end, it was a stupid thing.
I had already made all changes needed, but a restart of the exchange server, instead of a iisreset, was needed.
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