Purchasing Ability to Exceed Message/Attachment Size Limit

Is it possible to purchase the ability to exceed the message/attachment size limit on iCloud? I keep running into it when I need to send out PDF image files.

I'm afraid not.

Similar Messages

The following files weren't attached because adding them would cause the message to exceed the maximum size limit of 35 MB: MALAWI .pptx.

The following files weren't attached because adding them would cause the message to exceed the maximum size limit of 35 MB.
I have had my macbook pro since June and have had no problems sending an email until I have tried to send a presentation today. The above message is what I keep receiving even after using 3 email accounts.

Email providers often set file size limitations to conserve bandwidth and prevent service overload. Most common seems to be a limit on the order of 21 MB. If possible, break your presentation into two parts and send as two messages.

The following files weren't attached because adding them would cause the message to exceed the maximum size limit of 10 MB

Dear sir/madam
I installed exchange server 2013
my clients want to attache more than 10 MB
when they attache more than 10 MB they got this massage "The following files weren't attached because adding them would cause the message to exceed the maximum size limit of 10 MB"
so how can you help me to increase the attachment size and the way to do that
how can I change the default 10 MB
Please can you help me as soon as
Rawa Zangana

Hi Rawa,
You can use EAC or EMS to set the MaxSendSize. The default value of MaxSendSize is 10 MB.
If you use EAC, here is the steps:
Logon to EAC -> Mail flow -> Receive connectors -> settings-> type the Maximum send message size you want to set
If you use EMS, please use the cmdlet Rajith provided.
Hope it helps.
Best regards,
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Amy Wang
TechNet Community Support

Problem sending message, temporary size limit of server

I get this message when I try to send mail with attachments of less than 365 KB. "The size of the message you are trying to send exceeds a temporary size limit of the server. The message was not sent; try to reduce the message size or wait some time and try again. The server responded: 4.1.1...temporary failure." This just started happening. I've e-mailed files with much larger attachments and never had an issue. I tried e-mailing smaller attachments with the same results. I also tried waiting until the next business day hoping that the issue would resolve itself to no avail.
Please Help!
Kim

The error message is coming from your email providers server. What do they say when you ask them what is wrong with their equipment?

How do I change the attachment size limit in Calendar Server 6.3, UWC, IWC?

How do I properly increase or decrease the attachment size limit with Calendar Server and all supported user interfaces to it such as WCAP, UWC (Communications Express) and IWC (Convergence)? From my experience with the Outlook Connector, there seems to be some limit imposed by cshttpd on the size of a file upload (I believe I actually got an HTTP error code back on the wcap request indicating something was too big, sorry I don't have it handy, I'll have to re-test). Additionally, it seems UWC imposes additional limits (Example: http://docs.sun.com/app/docs/doc/819-4440/6n6jfgcjh?l=en&a=view&q=fileSizeHardLimit) but I can't seem to get those to work at all. I found many different web.xml related to UWC and I'm not sure which one to change, I tried a couple but had no success because UWC would always report this error if I uploaded between 4-5 megs: com.iplanet.jato.util.WrapperRuntimeException
Root cause = [java.io.IOException: Request cancelled because file input field
"importFile" size is over the configurable limit of 4194304 bytes; see filter init
parameter fileSizeHardLimit]
And it would complain about requestSizeLimit I think if it was over 5 megs, claiming that limit was 5242880. IWC gives a generic error when the upload is too big and rejects it.
I fear that a 4 meg limit will be too imposing and of limited value, so I would either like to raise it, or consider lowering it to 0 bytes so attachments cannot be used at all. I have been looking high and low for information on how to do this and all I can find is the UWC examples. I plan to support the Outlook Connector, UWC, and IWC so the limits should ideally be the same across each. Some of the Exchange data we wish to import does have some attachments so it would be good to continue support for that. I did see some other posts about quota RFEs but at this point I am not concerned about the disk consumption. Can anyone help? Thanks. Please let me know if there is any more information I can provide. I am running SCS6u1 on Solaris 10 SPARC.

Fred@egr wrote:
Thanks!!! This is working with IWC and I am pretty sure it will work with Outlook. I didn't think to look at config options for mshttpd since I don't have it installed and ics.conf doesn't list the http.service.maxmessagesize and service.http.maxpostsize by default.http.service.maxmessagesize is only relevant to mshttpd, not cshttpd. service.http.maxpostsize applies to both.
UWC is still limiting me though; I'm sure I can reconfigure UWC if I just know which file to edit and if I need to redeploy anything. I'm using the same install paths as the SCS6 Single Host example and I'm not sure which the "uwc-deployed-path" is supposed to be. Again, thanks.If you have deployed UWC/CE to Application Server you would edit the following file and restart application-server:
/opt/SUNWappserver/domains/domain1/generated/xml/j2ee-modules/Communications_Express/web.xml
e.g.
<filter>
    <filter-name>MultipartFormServletFilter</filter-name>
    <filter-class>com.sun.uwc.calclient.MultipartFormServletFilter</filter-class>
    <init-param>
      <param-name>fileSizeHardLimit</param-name>
      <param-value>15485760</param-value>
    </init-param>
    <init-param>
      <param-name>requestSizeLimit</param-name>
      <param-value>15485760</param-value>
    </init-param>
    <init-param>
      <param-name>fileSizeLimit</param-name>
      <param-value>15485760</param-value>
    </init-param>
</filter>Regards,
Shane.

Does Hotmail have an attachment size limit? When i attach something with more than 3mb in the mail it isn't send. It gives a resize option.

Does Hotmail have an attachment size limit? When i attach something with more than 3mb in the mail it isn't send. It gives a resize option.

Hi. Txs. The problem is that in my pc the limit size is 25mb. But in my ipad the mail only sends files under 3mb.

ICloud Attachment Size Limit

I just paid for iCloud without confirming whether or not there was an attachment size limit. Is there one?

Yes, the size limit for an email is 20 MB. (http://support.apple.com/kb/PH2629?viewlocale=en_US)

Exchange 2013 / Outlook 2010+ Attachment size limit

I have an issue with my Exchange 2013 deployment. I am unable to send attachments over 10MB. I know, I know not another one of those threads, but I promise I have searched for a solution to my issue as best I can before posting.
So in the EMC I have set the Send/Receive connectors to unlimited, I have set the organizational limits to unlimited, I have even set both the Internal and ExternalDsnMaxMessageAttachSize
to 2047MB.
I have restarted the the Exchange Transport service, failing that I restarted the Exchange Box. I have closed and opened my Outlook Client Several times but when ever
I select an attachment over 10MB I get the message "The Attachment size exceed the allowable limit"
There must be something I am missing but I can't see it. I did also check my (and other) user accounts to confirm that no limits had somehow been set, they are all unconfigured or
blank in the EMC which my research has told means there is no limit on the account.
Now I know in in non exchange environment there are limits on the client, but attached to an exchange server these limits are supposed to be driven by exchange.
Here is the output of Get-TransportConfig
AddressBookPolicyRoutingEnabled : False
AnonymousSenderToRecipientRatePerHour : 1800
ClearCategories : True
ConvertDisclaimerWrapperToEml : False
DSNConversionMode : UseExchangeDSNs
JournalArchivingEnabled : False
ExternalDelayDsnEnabled : True
ExternalDsnDefaultLanguage :
ExternalDsnLanguageDetectionEnabled : True
ExternalDsnMaxMessageAttachSize : 1.999 GB (2,146,435,072 bytes)
ExternalDsnReportingAuthority :
ExternalDsnSendHtml : True
ExternalPostmasterAddress :
GenerateCopyOfDSNFor : {}
HygieneSuite : Standard
InternalDelayDsnEnabled : True
InternalDsnDefaultLanguage :
InternalDsnLanguageDetectionEnabled : True
InternalDsnMaxMessageAttachSize : 1.999 GB (2,146,435,072 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 : Unlimited
MaxRecipientEnvelopeLimit : 500
MaxRetriesForLocalSiteShadow : 2
MaxRetriesForRemoteSiteShadow : 4
MaxSendSize : Unlimited
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
Thanks in advance for any assistance.
Carl

I have an issue with my Exchange 2013 deployment. I am unable to send attachments over 10MB. I know, I know not another one of those threads, but I promise I have searched for a solution to my issue as best I can before posting.
So in the EMC I have set the Send/Receive connectors to unlimited, I have set the organizational limits to unlimited, I have even set both the Internal and ExternalDsnMaxMessageAttachSize
to 2047MB.
I have restarted the the Exchange Transport service, failing that I restarted the Exchange Box. I have closed and opened my Outlook Client Several times but when ever
I select an attachment over 10MB I get the message "The Attachment size exceed the allowable limit"
There must be something I am missing but I can't see it. I did also check my (and other) user accounts to confirm that no limits had somehow been set, they are all unconfigured or
blank in the EMC which my research has told means there is no limit on the account.
Now I know in in non exchange environment there are limits on the client, but attached to an exchange server these limits are supposed to be driven by exchange.
Here is the output of Get-TransportConfig
AddressBookPolicyRoutingEnabled : False
AnonymousSenderToRecipientRatePerHour : 1800
ClearCategories : True
ConvertDisclaimerWrapperToEml : False
DSNConversionMode : UseExchangeDSNs
JournalArchivingEnabled : False
ExternalDelayDsnEnabled : True
ExternalDsnDefaultLanguage :
ExternalDsnLanguageDetectionEnabled : True
ExternalDsnMaxMessageAttachSize : 1.999 GB (2,146,435,072 bytes)
ExternalDsnReportingAuthority :
ExternalDsnSendHtml : True
ExternalPostmasterAddress :
GenerateCopyOfDSNFor : {}
HygieneSuite : Standard
InternalDelayDsnEnabled : True
InternalDsnDefaultLanguage :
InternalDsnLanguageDetectionEnabled : True
InternalDsnMaxMessageAttachSize : 1.999 GB (2,146,435,072 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 : Unlimited
MaxRecipientEnvelopeLimit : 500
MaxRetriesForLocalSiteShadow : 2
MaxRetriesForRemoteSiteShadow : 4
MaxSendSize : Unlimited
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
Thanks in advance for any assistance.
Carl
1. If you send a message larger than 10MB from an external client to your org, does it bounce back because its over the limit?
2. Do you see the same problem sending internally with OWA?
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Messaging server size limit

Hallo
As I see, I have common problem among the Sun Messaging Server administrators. I have whole system distributed on several virtual solaris machines and some days ago emerged message size problem. I noticed it in relation with incoming mail. When I create new user, he or she can't get larger mail then 300K. Sender get will known message:
This message is larger than the current system limit or the recipient's mailbox is full. Create a shorter message body or remove attachments and try sending it again.
<server.domain.com #5.3.4 smtp;552 5.3.4 a message size of 302 kilobytes exceeds the size limit of 300 kilobytes computed for this transaction>
Interesting thin is, that this problem arised with no correlation with other actions. I noticed this problem with new users before, but i could successful manage it with different service packs. Now this method with new users, this method doesn't work! Old users normally recieve messages bigger then 300k, as before.
I tried to set default setting blocklimit 2000 in imta.cnf, but I didn't succeed.
I know, that size limit can be set on different places, but is there a simple way, to set sending and recieving message size unlimited?
Messaging server version is:
Sun Java(tm) System Messaging Server 7u2-7.02 64bit (built Apr 16 2009)*
libimta.so 7u2-7.02 64bit (built 03:03:02, Apr 16 2009)*
Using /opt/sun/comms/messaging64/config/imta.cnf (compiled)*
SunOS mailstore 5.10 Generic_138888-01 sun4v sparc SUNW,SPARC-Enterprise-T5120*
Regards
Matej

For the sake of correctness, the attribute name in LDAP is mailMsgMaxBlocks.
I also stumbled upon this - the values like 300 blocks or 7000 blocks are set in (sample) service packages but are not advertised in Delegated Admin web-interface. When packages are assigned, these values are copied into each user's LDAP entry as well, and can not be seen or changed in web-interface.
And then mail users get "weird" errors like:
550 5.2.3 user limit of 7000 kilobytes on message size exceeded: [email protected]
or
550 5.2.3 user limit of 300 kilobytes on message size exceeded: [email protected]
resulting in
<[email protected]>... User unknown
or
552 5.3.4 a message size of 7003 kilobytes exceeds the size limit of 7000 kilobytes computed for this transaction
or
552 5.3.4 a message size of 302 kilobytes exceeds the size limit of 300 kilobytes computed for this transaction
resulting in
Service unavailable
I guess there are other similar error messages, but these two are most common.
I hope other people googling up the problem would get to this post too ;)
One solution is to replace the predefined service packages with several of your own, i.e. ldapadd entries like these (fix the dc=domain,dc=com part to suit your deployment, and both cn parts if you rename them), and restart the DA webcontainer:
dn: cn=Mail-Calendar - Unlimited,o=mailcalendaruser,o=cosTemplates,dc=domain,dc=com
cn: Mail-Calendar - Unlimited
daservicetype: calendar user
daservicetype: mail user
mailallowedserviceaccess: imaps:ALL$pops:ALL$+smtps:ALL$+https:ALL$+pop:ALL$+imap:ALL$+smtp:ALL$+http:ALL
mailmsgmaxblocks: 20480
mailmsgquota: -1
mailquota: -1
objectclass: top
objectclass: LDAPsubentry
objectclass: costemplate
objectclass: extensibleobject
dn: cn=Mail-Calendar - 100M,o=mailcalendaruser,o=cosTemplates,dc=domain,dc=com
cn: Mail-Calendar - 100M
daservicetype: calendar user
daservicetype: mail user
mailallowedserviceaccess: imaps:ALL$pops:ALL$+smtps:ALL$+https:ALL$+pop:ALL$+imap:ALL$+smtp:ALL$+http:ALL
mailmsgmaxblocks: 20480
mailmsgquota: 10000
mailquota: 104857600
objectclass: top
objectclass: LDAPsubentry
objectclass: costemplate
objectclass: extensibleobject
dn: cn=Mail-Calendar - 500M,o=mailcalendaruser,o=cosTemplates,dc=domain,dc=com
cn: Mail-Calendar - 500M
daservicetype: calendar user
daservicetype: mail user
mailallowedserviceaccess: imaps:ALL$pops:ALL$+smtps:ALL$+https:ALL$+pop:ALL$+imap:ALL$+smtp:ALL$+http:ALL
mailmsgmaxblocks: 20480
mailmsgquota: 10000
mailquota: 524288000
objectclass: top
objectclass: LDAPsubentry
objectclass: costemplate
objectclass: extensibleobject
See also limits in config files -
* msg.conf (in bytes):
service.http.maxmessagesize = 20480000
service.http.maxpostsize = 20480000
and
* imta.cnf (in 1k blocks): <channel block definition> ... maxblocks 20000 blocklimit 20000 sourceblocklimit 20000
i.e.:
tcp_local smtp mx single_sys remotehost inner switchchannel identnonenumeric subdirs 20 maxjobs 2 pool SMTP_POOL maytlsserver maysaslserver saslswitchchannel tcp_auth missingrecipientpolicy 0 loopcheck slave_debug sourcespamfilter2optin virus destinationspamfilter2optin virus maxblocks 20000 blocklimit 20000 sourceblocklimit 20000 daemon outwardrelay.domain.com
tcp_intranet smtp mx single_sys subdirs 20 dequeue_removeroute maxjobs 7 pool SMTP_POOL maytlsserver allowswitchchannel saslswitchchannel tcp_auth missingrecipientpolicy 4 maxblocks 20000 blocklimit 20000 sourceblocklimit 20000
tcp_submit submit smtp mx single_sys mustsaslserver maytlsserver missingrecipientpolicy 4 slave_debug maxblocks 20000 blocklimit 20000 sourceblocklimit 20000
tcp_auth smtp mx single_sys mustsaslserver missingrecipientpolicy 4 maxblocks 20000 blocklimit 20000 sourceblocklimit 20000
If your deployment uses other SMTP components, like milters to check for viruses and spam, in/out relays separate from Sun Messaging, other mailbox servers, etc. make sure to use a common size limit.
For sendmail relays sendmail.mc (m4) config source file it could mean lines like these:
define(`SMTP_MAILER_MAX', `20480000')dnl
define(`confMAX_MESSAGE_SIZE', `20480000')dnl
HTH,
//Jim Klimov
PS: Great thanks to Shane Hjorth who originally helped me to figure all of this out! ;)

Outlook 2010 attachment size limit

We're using a sendmail server for our email and have been using Outlook 2003 for the client. I'm evaluating Outlook 2010 but we've hit a snag. Total attachments over ~20MB result in a "The attachment size exceeds the allowable limit".
This works fine under 2003.
How can I fix this?

Hi,
First, please let us know the email server you are using. Is it Exchange and what’s the version? Also, does this issue occur on all the client computers or only
one some of the computers?
As this issue might be related to some settings on the Exchange server side, you may also contact your network administrator to check the settings on the server side.
If there are no attachment limitation settings on the server side, we can troubleshoot the issue by the steps below:
Step 1: Disable background transfer of attachments to the Exchange server.
=============
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you
follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs.
1. Run regedit on the outlook client computer that has the issue.
2. Locate the following registry key:
[HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook]
3. On the Edit menu, click Add Value, and then add the following registry value:
Value name: DisableBGSave
Data type: REG_DWORD
Radix: Hexadecimal
Value data: 1
Note: You will see the Policies key if policies are deployed in your environment. If so, add the registry key under the following registry key:
[HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\14.0\Outlook]
4. Restart Outlook and test the issue again. Is the issue resolved? If the problem persists, let’s continue.
Step 2: Start Outlook in online mode/safe mode.
=============
1. In Outlook, click File > Info > Account settings > Account settings.
2. Click your Exchange account, and click the
Change button, then More settings,
Advanced tab. Uncheck Use cached Exchange mode.
3. Exit Outlook . Click Start, point to All Programs, and then point to
Microsoft Office.
4. Press and hold the
CTRL key, and then click Microsoft Outlook.
Is the problem resolved? If not, let’s continue.
Step 3: Create a new Outlook profile.
=============
1.    Exit Outlook.
2.
Go to Start > Control Panel, click or double-click
Mail.
Mail appears in different Control Panel locations depending upon the version of the Microsoft Windows operating system, Control Panel view selected, and whether a
32- or 64-bit operating system or version of Outlook is installed.
The easiest way to locate
Mail is to open Control Panel in Windows, and then in the
Search box at the top of window, type Mail. In
Control Panel for Windows XP, type Mail in the
Address box.
Note
The Mail icon appears after Outlook starts for the first time.
The title bar of the Mail Setup dialog box contains the name of the current profile. To select a different existing profile, click Show Profiles, select the profile
name, and then click Properties.
3.
Click Show Profiles. Choose Prompt for a profile to be used.
4.
Click Add.
5.
Type a name for the profile, and then click OK.
6.
Start Outlook, and choose this new profile.
If this problem does not occur in the new Outlook profile, the old Outlook is corrupted. We can delete that and use a new Outlook profile.
Step 4: If it still not resolved, create a new Outlook profile on another PC that does not have this issue, then check to see if it persists. This can help us to narrow
down that if the issue is specific to the machines.
Please take your time to try the suggestions and let me know the results at your earliest convenience. If anything is unclear or if there is anything I can do for
you, please feel free to let me know.
Best Regards,
Sally Tang

Message attachment size

Hi
I have exchange 2010 and all users cannot receive emails with attachment size 40 GB
what will apply if we have conflict between
Global/Organizational Limit
Server Limits
Connector Limit
User Level Limits
which one of these should be applied to the user
MCP MCSA MCSE MCT MCTS CCNA

Hi,
The limit scope you mentioned above are used to restrict the total size of a message or the size of the individual components of a message, such as the message header, the message attachments, and the number of recipients.
http://technet.microsoft.com/en-gb/library/bb124345(v=exchg.141).aspx
If you want to restrict users from sending attachments larger than 40 GB, you can use transport rule to achieve this goal.
Best regards,
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Belinda Ma
TechNet Community Support

Email attachment size limit?

I noticed today that when I attach a photo from my external hard drive to an email on my Macbook Pro, the attachment drops in size significantly. I want to attach a photo that is 800kb but it shows up in the email as being 142kb. Why is this? How can I keep the attachment at its original size?

Your ISP sets the limit. Speak to them and get the max attachment size.

WebAccess Maximum Message/Attachment Size?

Is there a way to limit the size of messages (or attachments) with GroupWise WebAccess 8.0.2?
I've set the size limit for the domain (Client Options --> Disk Space Mgmt --> Maximum Message Size) which is working great for my Win32 clients. It doesn't, however, seem to affect WebAccess users. I've poked around through the other objects as well as the WEBACC.waa file but don't see anything that'll let me restrict message sizes.
Thanks for the help!
--David

On 4/6/2011 10:34 AM, David Hickok wrote:
> Is there a way to limit the size of messages (or attachments) with
> GroupWise WebAccess 8.0.2?
> I've set the size limit for the domain (Client Options --> Disk Space
> Mgmt --> Maximum Message Size) which is working great for my Win32
> clients. It doesn't, however, seem to affect WebAccess users. I've poked
> around through the other objects as well as the WEBACC.waa file but
> don't see anything that'll let me restrict message sizes.
> Thanks for the help!
> --David
GWAVA WASP can do this. Not aware of any built-in way.

IPad Mail - Maximum Attachment Size Limit (Sending)

Is there a maximum size limit for attachments that the iPad Mail App can send?
We have an iPad connected to an Exchange server through our internal wireless network. Mail is received by it (even with very large attachments) but if an email is sent with one or more attachments that total over 10MB, the email stays in outbox with an error "Cannot Send Mail" "An error occurred while delivering this message."
I've checked all of the limits on the Exchange server but these are all set to 20MB. Smaller attachments (6MB, 8MB, etc) work without any issues. I've searched these forums and around the internet but haven't been able to find anything about this and nothing about where any such limit would be configured.
Thanks in advance for any help

Done it! My colleague found an article here: http://www.i-tekpro.com/BlogArchive/Exchange2007/Max-Message-Size-Increase-Excha nge-2007-CAS.htm that discussed how to change a limit in an Exchange ActiveSync config file that seems to have been tripping us up. We changed the limit and got the email through. It's worth noting that this also applies to Exchange 2010, not just 2007.
Many thanks for your help with this,
Barry
Message was edited by: BarryJH

Exchange 2010 - Accepting Messages Above the Attachment Size Limit

Recently we implemented a new Exchange 2010 server in a site. This site is in another country with very poor WAN connectivity. Our standard attachment limit is 50MB (51200 kb) .
Since we have put this server in place I am seeing messages get stuck in the queue that are above the 50MB limit.
What I am confused about is how are they making it there, why is Exchange accepting them? I have checked all the connectors, they are all appear to be set correctly.
What I also notice is these messages sit in the queue and get error:
421 4.4.2 Connection dropped due to ConnectionReset
Any ideas?

Consider applying an enterprise limit by using Set-TransportConfig -MaxSendSize -MaxReceiveSize.
http://technet.microsoft.com/en-us/library/bb124151(v=exchg.150).aspx
Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Purchasing Ability to Exceed Message/Attachment Size Limit

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