Large emails not delivered - Exchange 2007
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From: RJeremy on 27 Apr 2010 02:54 Since yesterday, some large emails (ranging between 8MB and 17MB) have not been delivered to us from internet senders. My mail size limits have been set to 20MB in all the various areas that these limits are specified. All our mail is relayed via Trend, who filter spam, etc, and then forward to us. My online Trend console show that these specific large emails are "Queued for Delivery", since yesterday....still no delivery to our mailboxes. I've been in touch with them but they tend to write us off as something wrong on our side. How can I go about confirming that these mails have not reached us? How about fixing it...what can I do to resolve this as large mails are a daily occurrence? I've had a look at the logs, and there is no reference to these mails...which indicate to me that these mails have not even touched my server yet. Please help.
From: SuperGumby [SBS MVP] on 27 Apr 2010 09:35 depending on the type of content an email with a 17MB attachment, when converted to mime format, may be 25-30MB. Mail is not a file transfer mechanism. "RJeremy" <RJeremy(a)discussions.microsoft.com> wrote in message news:D0777FF6-1C46-4C82-A679-581D7A8300CF(a)microsoft.com... > Since yesterday, some large emails (ranging between 8MB and 17MB) have not > been delivered to us from internet senders. My mail size limits have been > set > to 20MB in all the various areas that these limits are specified. > > All our mail is relayed via Trend, who filter spam, etc, and then forward > to > us. My online Trend console show that these specific large emails are > "Queued > for Delivery", since yesterday....still no delivery to our mailboxes. I've > been in touch with them but they tend to write us off as something wrong > on > our side. > > How can I go about confirming that these mails have not reached us? How > about fixing it...what can I do to resolve this as large mails are a daily > occurrence? I've had a look at the logs, and there is no reference to > these > mails...which indicate to me that these mails have not even touched my > server > yet. > > Please help.
From: Ace Fekay [MVP - Directory Services, MCT] on 27 Apr 2010 10:08 On Tue, 27 Apr 2010 23:35:28 +1000, "SuperGumby [SBS MVP]" <not(a)your.nellie> wrote: >depending on the type of content an email with a 17MB attachment, when >converted to mime format, may be 25-30MB. > >Mail is not a file transfer mechanism. > I agree about the size increase due to the MIME overhead. It's usually around 33% increase of the actual file size. I have a question regarding the smaller attachments, such as around 11 MB, which should have gone through. If it was done correctly in Exchange 2007's three locations that it must be changed, then my thought is Trend's limit is not set properly. To RJeremy - exactly where in Exchange did you set new limits? Was it in the following areas? 1. Organization, Hub, Send Connectors Tab, "Maximum Message Size (KB)." 2. Organization, Hub, Global Tab, Transport Settings Property, "Maximum Receive Size (KB) and Maximum Send Size (KB)." 3. Server Configuration, Select Server Name at the top, Receive Connector tab below, In the Connector called "Default ServerName" Properties, Maximum Message Size (KB). If any clients are using POP3 or IMAP4, also change it in the "Client ServerName" Connector. Did you also change it in Trend, or are you waiting for a callback from Trend? ================================================================== Ace This posting is provided "AS-IS" with no warranties or guarantees and confers no rights. Please reply back to the newsgroup or forum for collaboration benefit among responding engineers, and to help others benefit from your resolution. Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003 Microsoft Certified Trainer Microsoft MVP - Directory Services If you feel this is an urgent issue and require immediate assistance, please contact Microsoft PSS directly. Please check http://support.microsoft.com for regional support phone numbers.
From: SuperGumby [SBS MVP] on 27 Apr 2010 10:20 4 locations actually Ace, http://blogs.technet.com/sbs/archive/2008/10/28/how-do-i-change-message-size-limits-in-exchange-2007.aspx Highly compressed files often end up larger than 133%. "Ace Fekay [MVP - Directory Services, MCT]" <aceman(a)mvps.RemoveThisPart.org> wrote in message news:4mrdt59l2r1f64pn7asaeevc18se0552b5(a)4ax.com... > On Tue, 27 Apr 2010 23:35:28 +1000, "SuperGumby [SBS MVP]" > <not(a)your.nellie> wrote: > >>depending on the type of content an email with a 17MB attachment, when >>converted to mime format, may be 25-30MB. >> >>Mail is not a file transfer mechanism. >> > > I agree about the size increase due to the MIME overhead. It's usually > around 33% increase of the actual file size. > > I have a question regarding the smaller attachments, such as around 11 > MB, which should have gone through. If it was done correctly in > Exchange 2007's three locations that it must be changed, then my > thought is Trend's limit is not set properly. > > To RJeremy - exactly where in Exchange did you set new limits? Was it > in the following areas? > > 1. Organization, Hub, Send Connectors Tab, "Maximum Message Size > (KB)." > 2. Organization, Hub, Global Tab, Transport Settings Property, > "Maximum Receive Size (KB) and Maximum Send Size (KB)." > 3. Server Configuration, Select Server Name at the top, Receive > Connector tab below, In the Connector called "Default ServerName" > Properties, Maximum Message Size (KB). If any clients are using POP3 > or IMAP4, also change it in the "Client ServerName" Connector. > > Did you also change it in Trend, or are you waiting for a callback > from Trend? > > ================================================================== > Ace > > This posting is provided "AS-IS" with no warranties or guarantees and > confers no rights. > > Please reply back to the newsgroup or forum for collaboration benefit > among responding engineers, and to help others benefit from your > resolution. > > Ace Fekay, MVP, MCT, MCITP EA, MCTS Windows 2008 & Exchange 2007, MCSE & > MCSA 2003/2000, MCSA Messaging 2003 > Microsoft Certified Trainer > Microsoft MVP - Directory Services > > If you feel this is an urgent issue and require immediate assistance, > please contact Microsoft PSS directly. Please check > http://support.microsoft.com for regional support phone numbers.
From: Ace Fekay [MVP - Directory Services, MCT] on 27 Apr 2010 11:42
On Wed, 28 Apr 2010 00:20:29 +1000, "SuperGumby [SBS MVP]" <not(a)your.nellie> wrote: >4 locations actually Ace, >http://blogs.technet.com/sbs/archive/2008/10/28/how-do-i-change-message-size-limits-in-exchange-2007.aspx > >Highly compressed files often end up larger than 133%. > Thanks, SuperGumby. The 4th spot is the mailbox settings, but controlling it at the Transport settings I think are fine, unless you are targeting a specific user that is abusing it. I was thinking in the terms of 33% larger than the original size, which mathematically equates to 133% of the original size. Unless my math is wrong? Ace |