Solved

User cannot receive 7MB file attachment in Exchange 2007

Posted on 2010-08-16
25
2,883 Views
Last Modified: 2012-05-10
Hi everyone,

I am having a strange issue where a user cannot receive a 7MB file attachment to our SBS 2008, Exchange 2007 SP2 server. I have searched EE as well as followed the steps outlines here: http://exchangeshare.wordpress.com/2008/04/24/exchange-2007-where-to-set-message-mail-size-limit/

Adjusted the Receive connector from 10MB to 20MB. Restarted the System Attendant and Transport services. Strange part is, the Exchange default is 10MB and the file is only 7MB and we have not had previous issues. No virus scanner or other content filtering in place on the server, but the email does get relayed through MessageLabs for spam and virus checking. However, they don't limit attachments. Below is the bounced message. Thanks in advance.

Could not deliver message to the following recipient(s):

Failed Recipient: abliss@slsindiana.com
Reason: Message exceeded the domain's maximum message size limit

   -- The header and top 20 lines of the message follows --

Received: from [192.168.10.117] (rrcs-24-172-172-154.central.biz.rr.com [24.172.172.154]) by mailb10.webcontrolcenter.com with SMTP;
   Mon, 16 Aug 2010 12:53:36 -0700
Message-ID: <4C69973F.7070001@indytechpro.com>
Date: Mon, 16 Aug 2010 15:53:35 -0400
From: David Moore <dmoore@indytechpro.com>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.8) Gecko/20100802 Thunderbird/3.1.2
MIME-Version: 1.0
To: Amy Bliss <abliss@slsindiana.com>
Subject: Re: FW: Still will not work
References: <254E1F346B43CB4FB34DB2A26A6A15A40380761E3A@SERV002.hq.slsindiana.com>
In-Reply-To: <254E1F346B43CB4FB34DB2A26A6A15A40380761E3A@SERV002.hq.slsindiana.com>
Content-Type: multipart/mixed;
 boundary="------------020700020408060107090005"

This is a multi-part message in MIME format.
--------------020700020408060107090005
Content-Type: multipart/alternative;
 boundary="------------060903070502000106020402"


--------------060903070502000106020402
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Open in new window

0
Comment
Question by:IndyTechPro
  • 9
  • 8
  • 3
  • +3
25 Comments
 
LVL 1

Expert Comment

by:RobNC
Comment Utility
To send larger files try a service like Dropbox...just google it...it's great for sending pics also
0
 
LVL 3

Expert Comment

by:briousd
Comment Utility
Hello

Can you open powershell and run

get-transportconfig

let me know the results thanks
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
Sure thing, here is the result:

[PS] C:\Windows\System32>get-transportconfig


ClearCategories                : True
DSNConversionMode              : UseExchangeDSNs
GenerateCopyOfDSNFor           : {5.4.8, 5.4.6, 5.4.4, 5.2.4, 5.2.0, 5.1.4}
InternalSMTPServers            : {127.0.0.1}
JournalingReportNdrTo          : <>
MaxDumpsterSizePerStorageGroup : 18MB
MaxDumpsterTime                : 7.00:00:00
MaxReceiveSize                 : 20MB
MaxRecipientEnvelopeLimit      : 5000
MaxSendSize                    : 20MB
TLSReceiveDomainSecureList     : {}
TLSSendDomainSecureList        : {}
VerifySecureSubmitEnabled      : False
VoicemailJournalingEnabled     : True
HeaderPromotionModeSetting     : NoCreate
WritingBrandingInDSNEnabled    : True
Xexch50Enabled                 : True



[PS] C:\Windows\System32>
0
 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
Did you check with these guys if the problem is at their end ? their send connector might have some rules regarding limits on attachment sizes ?

From: David Moore <dmoore@indytechpro.com>
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
The sender was able to email the attachment to me (I am with a third party provider not on the same server) and the file came through fine. I tried sending the file from my own server and I get the same response.
0
 
LVL 3

Assisted Solution

by:briousd
briousd earned 100 total points
Comment Utility
-open exchange management console
-expand organization configuration
-click once on Hub Transport
-find and click Global settings tab to the right
-right click transport settings and click properties

do the limits here match your powershell results ?
0
 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
Any layers of AV / Postini / anything else in between ?
check org config > hub transport > Transport rules ?
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
@briousd: Hub Transport send/receive both at 20480

@sunnyc7: Incoming email is routed through MessageLabs by MX records, checked for spam or virus attachments by them, then routed to the WAN IP of the Exchange server. Nothing else in between. In fact this is only a 2 month old server and as I said, no other A/V or spam software is running on the server itself. Nothing in transport rules either.
0
 
LVL 3

Expert Comment

by:briousd
Comment Utility
alright i'm chasing a ghost. i'll keep looking
0
 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
did you check transport rules @ message labs. Maybe there is some attachment blocking happening @ that end. ?
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
@sunnyc7: MessageLabs responded and said they allow attachments up to 50MB and there isn't any reason it should be getting blocked from their system.
0
 
LVL 1

Expert Comment

by:RobNC
Comment Utility
I may be wrong, but it doesnt seem like you've given serious consideration to DropBox. (no, I dont work for them!) They give you 2 GB of very easily used space which can solve your specific problem and much more. I spent a long time looking for work arounds and other email platforms for sending larger files. Dropbox not only solved this problem, but gave me a multitude of other uses...the ability to share with more than one person easily....some easy back up space for incremental stuff I wanted backed up immediately...and remote access to stuff I needed from elsewhere....different servers or OS dont matter, good to send stuff between PC.Mac,Linux, etc...all with excellent encyption.  Obviously, there are a myriad of similar services.....but this is one of the best I've found...2GB of free storage for just about any file type. Real good for free...and worth checking out.
0
Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
Go to Exchange 2007
toolbox > message tracking

enter this 2 email addresses and your server name

From: David Moore <dmoore@indytechpro.com>
To: Amy Bliss <abliss@slsindiana.com>

Put a date range of about a week.
We are trying to catch a message with the subject line

Subject: Re: FW: Still will not work

Lets see what did exchange do there ?
0
 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
Anything in event logs -- looking for a event id corresponding to > email bounce
0
 
LVL 6

Assisted Solution

by:siht
siht earned 50 total points
Comment Utility
You need to set the max message size in a few places, here's the how to I used to resolve this:

http://exchangeshare.wordpress.com/2008/04/24/exchange-2007-where-to-set-message-mail-size-limit/

Be aware that you are setting the max message size not the max attachment size. For a 10MB attachment you'll need to set the message size to 13 - 14 MB.
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
@sunnyc7: I will check these on the server tomorrow.

@siht: I have the same link copied in the original post and said I followed this already.

Thanks for the help
0
 
LVL 4

Expert Comment

by:mukulag
Comment Utility
If you would get-messagetrackinglog and export it to CSV for that particular email (of course you will need to narrow the query to get only the relevant email). You will come to know of the problem.  
 You will see "Content Conversion" in source context for one of the rows for this email.
Content conversion happens when Exchange converts an internet (MIME) message into Exchange (MAPI) format, and vice versa. This conversion is done by Exchange while sending/receiving emails to/from Internet. Content conversion generally increases the message size - roughly by 30%. This explains why your email with 7MB attachment will not go even when the limits are set for 10 MB.
 Go to the last of this blog and it explains the content conversion in more detail and a link to MS article is also available.
http://exchangepedia.com/2007/09/exchange-server-2007-setting-message-size-limits.html
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
@RobNC: I would like to find a service that provides an easy pick-up and drop-off location for large files. This client is regularly needing 40-60MB files sent and right now I am manually uploading them to FTP and providing a link. However, I would like to solve the problem with Exchange first because it *should* be able to handle files up to 10-15MB.

I have looked at DropBox and I don't see how someone from the outside can place a file into a folder in your account, is this even possible? Is there another service that provides this type of functionality, both for the in-house user to place files in for download as well as an external client uploading files to us rather than emailing?
0
 
LVL 1

Expert Comment

by:RobNC
Comment Utility
I made the suggestion because my wife's organization uses Exchange and has had a fit sending large files! I believe the situation with DropBox may be resolved based on a bit of trust, if possible. I'm fairly certain both parties can share the same log on information.I base this on knowing one advantage of Dropbox is that one can access the "box" from any computer. There are a couple of other similar services, let me see if I can remember their names!!!! I've also forgotten if they are free (LockBox is free up to 2GB)
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
@sunnyc7: Nothing comes up in the message tracking. I tried sending the message again to make sure I am not missing it and the email from me never shows.

I don't see anything related in the event log at the times the message was sent, though I am admittedly not very familiar with the server 2008 event log. Is there a specific location/error I should look for?

With the 30% overhead, I wonder if this message is still being limited by the original 10MB limit and I need to schedule a restart of this server to get it to activate the new 20MB limit I set?
0
 
LVL 28

Assisted Solution

by:sunnyc7
sunnyc7 earned 350 total points
Comment Utility
start > run > eventvwr
windows Logs
check under application logs.

you dont need to restart the server, only the information store.

If nothing comes-up in message tracking, then the emails were not rejected by Exchange. It was rejected by something else...and that's the root of your issue.
That's why I asked you to check with message labs, but they said they have a 50 MB limit.

Is there a smarthost in between which is relaying these messages ?

There is something before the emails hit exchange which is stopping them. If you dont have them in message tracking logs, then those emails never hit exchange and got rejected because of message limits on mailbox etc.
0
 
LVL 2

Author Comment

by:IndyTechPro
Comment Utility
I think I'm on to something. I've contact my own mail provider and they actually have a 10MB limit on outgoing messages (I assumed it was higher than this, my fault for assuming). I now believe the original delivery failure I posted above is from my own server because it doesn't mention anything from the MessageLabs server, which are more descriptive. When the original sender tried sending this, they received a NDR from MessageLabs. I attempted to send the message from a Gmail account which provides a 25MB send/receive limit. Here is the NDR I get back from Gmail:

-------------------------------------------
This is the mail delivery agent at messagelabs.com.
I was not able to deliver your message to the following addresses.

<abliss@slsindiana.com>:
68.166.153.236 failed after I sent the message.
Remote host said: 552 5.3.4 Message size exceeds fixed maximum message size


--- Below this line is a copy of the message.

Return-Path: <indytechpro@gmail.com>
X-VirusChecked: Checked
X-Env-Sender: indytechpro@gmail.com
X-Msg-Ref: server-14.tower-51.messagelabs.com!1282060445!41549364!1
X-StarScan-Version: 6.2.4; banners=-,-,slsindiana.com
X-Originating-IP: [209.85.215.48]
X-SpamReason: No, hits=0.0 required=7.0 tests=Mail larger than max spam
 size
Received: (qmail 14119 invoked from network); 17 Aug 2010 15:54:05 -0000
Received: from mail-ew0-f48.google.com (HELO mail-ew0-f48.google.com) (209.85.215.48)
 by server-14.tower-51.messagelabs.com with SMTP; 17 Aug 2010 15:54:05 -0000
Received: by ewy10 with SMTP id 10so4064210ewy.7
       for <abliss@slsindiana.com>; Tue, 17 Aug 2010 08:54:05 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
       d=gmail.com; s=gamma;
       h=domainkey-signature:mime-version:received:received:in-reply-to
        :references:date:message-id:subject:from:to:content-type;
       bh=WKgqiO7fqVyw3anCeHSXUJHdHDJ85/QSr8yFACMFwU0=;
       b=HHkAsQak2QQMjKCL2V4qN/uzfnsyJWNmD/06bSycci7L9xfC0H8jGck4Q4j1hxqTXw
        iNVBXAcAcvNAZWFUS34+Kurppcrmk6Wz/fdIBDgipHt6fG2Es4k7HB+jgoUtFKrhP9FM
        d67/w6vJ5MSdg8ymHBICbUxYOn6UE9d+mVvFw=
DomainKey-Signature: a=rsa-sha1; c=nofws;
       d=gmail.com; s=gamma;
       h=mime-version:in-reply-to:references:date:message-id:subject:from:to
        :content-type;
       b=lu8cyUcR90vmoDUMIrzLv8zw44wV0wwr29lZXQE1K21bEiL8NvtRF+amV4gtry+6z3
        5Ac0iiVCswHdZdJ+GXUo+IcV1U34OfteqtHwu0f0DJVzj6jesBAZ3pcuDY3aEsu6WQWh
        Lp6psePteBFi0diqvE99SHX5VFxJzHgEbb8AU=
MIME-Version: 1.0
Received: by 10.216.176.83 with SMTP id a61mr5859974wem.47.1282060442684; Tue,
 17 Aug 2010 08:54:02 -0700 (PDT)
Received: by 10.216.230.152 with HTTP; Tue, 17 Aug 2010 08:54:01 -0700 (PDT)
In-Reply-To: <AANLkTi=2Ykz0etoVSkAre1v8OMtk7Ok35DOjEFOuO+Y6@mail.gmail.com>
References: <AANLkTi=2Ykz0etoVSkAre1v8OMtk7Ok35DOjEFOuO+Y6@mail.gmail.com>
Date: Tue, 17 Aug 2010 11:54:01 -0400
Message-ID: <AANLkTimxpvo+HZbJ+-JTjfB2ft=PmQr72AcqhirAoV1j@mail.gmail.com>
Subject: Fwd: Test
From: David Moore <indytechpro@gmail.com>
To: abliss@slsindiana.com
Content-Type: multipart/mixed; boundary=0016e65aeed644ae69048e06f500

--0016e65aeed644ae69048e06f500
Content-Type: multipart/alternative; boundary=0016e65aeed644ae60048e06f5fe

--0016e65aeed644ae60048e06f5fe
Content-Type: text/plain; charset=ISO-8859-1
0
 
LVL 28

Accepted Solution

by:
sunnyc7 earned 350 total points
Comment Utility
a) I've contact my own mail provider and they actually have a 10MB limit on outgoing messages
>> Are you sending emails through DNS or sending it via Smarthost.

who is your own mail provider ?

b) Your message header says this.
Return-Path: <indytechpro@gmail.com>
X-VirusChecked: Checked
X-Env-Sender: indytechpro@gmail.com
X-Msg-Ref: server-14.tower-51.messagelabs.com!1282060445!41549364!1
X-StarScan-Version: 6.2.4; banners=-,-,slsindiana.com
X-Originating-IP: [209.85.215.48]
X-SpamReason: No, hits=0.0 required=7.0 tests=Mail larger than max spam size

>> So this is definitely @ message labs end.

c) Look at Message-ID: tab > that is the server which generates the message.

d) Interesting thing in the header.
At no point there is any word for SMTPSVC - which is microsoft's signature for SMTP Virtual Server which is doing all the work for Exchange.

I think the mail is not hitting exchange at all.
This is borne out by 2 facts:
a) Message Tracking logs nothing there.
b) Email header in bounce doesnt have ms exchange signature.

I will wait for others to comment.

thanks

0
 
LVL 2

Author Closing Comment

by:IndyTechPro
Comment Utility
Issue has been solved! This was a big oversight on my part, apparently the SBS server has 2 Receive connectors: one called "Default [servername]" and another called Windows SBS Internet Receive [servername]", which is placed below the Fax connector. While following the procedure from the blog I originally posted, it only shows changing the "Default" connector, which is what I did. I had to change the second to make it work. Is this an SBS only thing? And why didn't it show in the PowerShell output?

If the receive connector was rejecting the messages, would this explain why they never showed up in the event log?

@siht: even though I said I followed the procedure posted, the connectors were still the right track. Thanks for the input.

Thanks everyone for the help, you really provided a lot of insight to guide me in digging to determine where the problem was.
0
 
LVL 28

Expert Comment

by:sunnyc7
Comment Utility
If the receive connector was rejecting the messages, would this explain why they never showed up in the event log?
>> Depends on your level of diagnostic logging.
If you crank it up, you can capture all of them...and that becomes a different problem. Logs filling up with all mails rejected.

Wonders of SBS !!
0

Featured Post

Are end users causing IT problems again?

You’ve taken the time to design and update all your end user’s email signatures, only to find out they’re messing up the HTML, changing the font and ruining the imagery. What can you do to prevent this? Find out how you can save your signatures from end users today.

Join & Write a Comment

Suggested Solutions

Check out this infographic on what you need to make a good email signature that will work perfectly for your organization.
Following basic email etiquette rules will help you write a professional email and achieve a good, lasting impression with your contacts.
In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
In this video we show how to create a Resource Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: Navigate to the Recipients >> Resources tab.: "Recipients" is our default selection …

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

8 Experts available now in Live!

Get 1:1 Help Now