message delivery size

45 pts.
Microsoft Exchange 2003
Windows 2000 Server
I set sending/receiving message size to 20000KB in global settings. But I still can not send out a 10MB message. Can anybody help me? My system: Exchange 2003 SP2 on Windows 2000 SP4. Thanks in advance

Answer Wiki

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if the global is set to 20 but your 10MB file will not go out then you need to go into active directory users and computers, find your account. open it and go to I believe the Exchange General tab. that will show storage limits. if you have a custom setting on yours it will override the global. just checkmark use store defaults or change your custom setting. Messaage size limits can bet set on the mailbox or information store itself, you’ll have to check all of these places to see if the limit is on your end or somewhere else.

The other problem you may be having is your recipient may not be allowed to receive emails that large. And, if your forwarding through your ISPs SMTP server, via “Smart host” delivery instead of via DNS direct delivery, they may be blocking it as well. Can you tell us the error message you receive, that would help us understand your situation a little better.

I cheched AD user settings, for storage limits, it uses mailbox store defaults, for delivery restrictions, it also use defaults. The mailbox store has no limits setting. BTW, I use enterprise version. The SMTP vertual server has the same settings as global settings(allowed 20000KB message to be sent).

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  • Denny Cherry
    I agree, without the error message that you are getting, troubleshooting is next to impossible.
    69,130 pointsBadges:
  • Hehe
    Here is the NDR Attachments: big file test‎(5MB)‎ Your message did not reach some or all of the intended recipients. Subject: big file test Sent: 2/22/2008 9:24 PM The following recipient(s) could not be reached: XXXXX ( on 2/22/2008 9:24 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. < #5.2.3 smtp;450 5.2.3 Msg Size greater than allowed by Remote Host> I am out of my office. I will check the AD user settings coming Monday though I don't think that is the case. Thanks everyone
    45 pointsBadges:
  • Jerry Lees
    This is because the reciepient's Mail Server blocks messages larger than a certain size. In this case it's yahoo (unless you've modified the address to protect the e-mail) Most places do place limits on mail message size these days... what with people able to send a 10Mb attachment without even thinking about it a Mail administrator almost has too! ;-) Ahhh, for the good old days... when if you sent a 10Mb attachment you knew it becasue it took you 3 hours to upload your mail. ;-)
    5,335 pointsBadges:
  • Hehe
    I use Yahoo just for getting the exact NDR message. I just sent same message to the same Yahoo account using another mail system. It went through.
    45 pointsBadges:

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