Message/Attachment limits (Tried everything) 1

[JamesBoag]

Hello, I have a 5.5 Exch server(sp4) on NT4.0 platform(sp6a)and the users can not receive external messages with attachments greater than about 2.9 MB. The sender(s) recieve a failure notification stating that

The following recipient(s) could not be reached:

name@name.com on 29/07/2002 3:01 PM
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.somewhere.com.au #5.2.3 smtp;450 5.2.3 Msg Size greater than allowed by Remote Host>


I have checked the IMS settings, the MTA settings, and the Private Info Store settings. Everything is either set at &quot;NO LIMITS&quot; or &quot;USE DEFAULT SETTINGS FOR INFO STORE&quot;.

I have double checked everything, and stopped/RE-Started services everywhere.

Any ideas/suggestions will be gratefully received.

Cheers

 

[brontosaurus]

nothing set on the individual mail accounts either?

 

[TechieB]

Try this: Go to the &quot;Connections&quot; object for your site. Open &quot;Internet Mail Service&quot; then, click on the &quot;General&quot; tab and modify the message size limit. Take care not to make it too large as it can &quot;choak&quot; your message delivery queue. Wishing you the best!

 

[JamesBoag]

Well Thanks guys, I have looked and done everything as suggested. Still no joy. I even removed the NO LIMIT and set it to 9000K just to see if it would have any effect.

What I have done though is enable DIAGNOSTIC LOGGING here and there. Then looking in event viewer (Application log) I can see when a connection is made from the senders IP Address and then another event for when the message is delivered to the mailbox.

When a message with an attachment larger than about 2.9MB gets sent to the server from Outside, I can see the first event in the application log of event viewer (Connection made with x.x.x.x)but there is no other event associated with this.

The only thing I haven't done is reboot the server. Though I have stopped/started every Exchange service.

Still looking for answers

Cheers

 

[Grenage]

If you have an ISP that hosts your mail and your exchange downloads your mail from there, does your ISP have a limit on attachment sizes ?

 

[JamesBoag]

No the mail goes in direct. I have also checked the mail headers from eachway including the &quot;Bounced&quot; replies.

cheers

 

[brontosaurus]

Couple things to try:
Run the performance optimizer again,
Recreate the IMS.

 

[JamesBoag]

Thanks for all the tips. I went through the network and discovered a 3000KB limit on an SMTP policy on the watchguard (Firewall). Just thought I'd mention it now!!

Many thanks to those who posted

Cheers