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Unable to receive messages >10MB

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Unable to receive messages >10MB - 19.Jan.2007 7:59:44 PM   


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We're running Ex2007 Standard (RTM) and mail flow has been working well. However, the Ex2007 mailboxes cannot receive mail messages greater than 10MB in size. One catch is that our Ex2007 server is co-existing with a Ex2000 server. All incoming mail still go through the 2000 server. I did find the message limit of the Ex2000 server to be 10MB, so I increased it to 20MB. And the default mail message limit on the Ex2007 server is "unlimited". However, we still have the same problem after the change. Is it possible the change is taking a while to propagate through AD? It's been about 2 hrs now (we have a small office).

Thanks in advance.
Post #: 1
RE: Unable to receive messages >10MB - 19.Jan.2007 11:04:42 PM   
Henrik Walther


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It sounds like you need to adjust the Receive Connector limit, also see:



Henrik Walther
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(in reply to belerek)
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RE: Unable to receive messages >10MB - 22.Jan.2007 12:39:15 PM   


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Thank you for the suggestion. However, the changes I've made have not resolved the issue. I found two receive connectors, and set the MaxMessageSize on both to 20MB:
  set-receiveconnector "default server" -MaxMessageSize 20MB
  set-receiveconnector "client server" -MaxMessageSize 20MB

I sent out another test email with 11MB attachment, and I'm seeing an NDR in the Ex2000 Message Tracker:
  1/22/2007   8:48am   SMTP: Message Submitted to Advanced Queuing
  1/22/2007   8:48am   SMTP: Started Message Submission to Advanced Queue
  1/22/2007   8:48am   SMTP: Message Submitted to Categorizer
  1/22/2007   8:48am   SMTP: Non-Delivered Report (NDR) Generated

I see nothing about this email in the Ex2007 message tracker.

How can I tell if my set-receiveconnector cmdlet's took effect? Any additional suggestions to get this working?

Thanks again.

(in reply to Henrik Walther)
Post #: 3
RE: Unable to receive messages >10MB - 26.Jan.2007 3:59:03 AM   


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Thank for the hint, we had the same problem. I'l try it.

(in reply to belerek)
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RE: Unable to receive messages >10MB - 21.Feb.2007 3:13:22 AM   


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Hi All.

Been working on setting up our 1st exchange 2007 server. Everything so far has been fine, except for the 10mb inbound limit.

I have done the:

set-receiveconnector "default <server name>" -maxmessagesize 20MB

Have checked to makesure the setting were taken and still the inbound is limited to 10MB.

Is there something I am missing? Also would enabling the spam options on the server have triggered something else to set a limit?



(in reply to belerek)
Post #: 5
RE: Unable to receive messages >10MB - 22.Mar.2007 12:21:20 PM   


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I seem to have the same problem, jet a little different:

I can receive mails >10MB from INet
I can send mails >10MB to INet
I can't send internal mails >10MB


Diese Nachricht überschreitet die maximal zulässige Nachrichtengröße

In English: Message too big

All limits in send and receive connectors (as far as i can see)
are set to 100MB and only internal mails don't act as expected.

What can I do?

Please help.

(in reply to jcisneros)
Post #: 6
RE: Unable to receive messages >10MB - 29.Mar.2007 10:30:04 AM   


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I was participating in a similar thread here about Exchange 2007 and I found an answer for myself, and thought this might help. I decided to change the Mailbox limits from "unlimited" to an actual limit and see if that made a difference, and it did.  In the Exchange Management Console (the GUI tool) I went to the Recipient COnfiguration area and then to the Mailboxes.  I edited the properties of one user and went to the "Mail Flow Settings" tab.  Highlight the "Message Size Restrictions" and click the properties button.  Now, the Sending Message SIze and Receiving Message Size "Maximum Message Size in KB" were unchecked, hence the get-Mailbox report of MaxMessageSize = unlimited.  I checked both boxes and entered 102400 (100 MB in KB) and saved.  I didn't even restart the transport service or anything and voila!  I was able to send files larger than 10 MB.  I then changed all the users the same way (there's probably a global way to do this, but I only have 15 users.)  Now get-Mailbox in the Exchange Management Shell shows 100 MB on all mailboxes.  I still don't understand why not setting a limit and get-mailbox showing unlimited isn't actually unlimited, but there's probably a twisted Microsoft logic to it somewhere.   Henrik stated that "There's no other places in Exchange 2007 you can configure the message size limits."  referencing the Exchange Management SHell commands for setting the configuration for the following items (the commands here are the get or "show me" commands):get-sendconnector, get-recieveconnector
get-transportconfig shows MaxSendSize is unlimited
get-Mailbox shows MaxSendSize is unlimited.
I'm sure that Henrik is right, those are the only settings, except it seems that having the Maximum Size check boxes unchecked and get-mailbox showing "unlimited" somehow really isn't...  But limiting the size to a size larger than what you want to send works.  Good luck to us all as we try to figure this new software out. -Steve

(in reply to Gerd)
Post #: 7
RE: Unable to receive messages >10MB - 29.Mar.2007 3:51:38 PM   


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You are my own personal hero for the rest of the month!

I tried that and low and behold, it worked. Though on my server I did have to bounce the message store.

Funny thing I had looked over that setting numerous times, but figured, unlimted, would be unlimited. So it is nice now to be able to receive the attachments that we should be getting now.

Thanks again!


(in reply to sfosmire)
Post #: 8
RE: Unable to receive messages >10MB - 2.Apr.2007 10:25:58 PM   


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As posted here:


Set-TransportConfig -MaxReceiveSize 30MB -MaxSendSize 30 MB

seems to fix this for all mailboxes.

(in reply to jcisneros)
Post #: 9
RE: Unable to receive messages >10MB - 24.May2007 3:03:16 PM   


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From: NJ, USA
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Ahhh you guys are my heroes!

My users were not happy they couldn't send anything over 10mb. Should have come here sooner for the answer!

Have a great holiday weekend all.

(in reply to mleklund)
Post #: 10

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