Problems sending PDF files

[3Sixty]

Hi Everyone,

We have had our exchange 2003 server as part of the Server SBS suite for 2 years and we have not had this problem before. The problem we are experencing is we can not send PDF attachments . This is only a problem with PDF and does not affect any other files. I can send a DOC file and any other type of file just not pdf. I can zip the file and it will send no problems. I have uninstalled our spam filter and antivirus application and still they do not send. I have created a new SMTP virtual server and tried again but still no joy. I did notice witht the new virtual server the emails were sent faster but still not send the email. I have used the various tools from Microsoft best pratice tools etc. They all say the server is fine. Any help would be greatly appreciated.

Thanks,
Marshall

 

[58sniper]

What error do you get? What do the logs say?

Pat Richard MVP

 

[xmsre]

To whom? Is the message recieved missingthe attachment. or is the attachment blocked?

When you attach a file and send it over the internet, it gets MIME encoded. If you don't have a MIME type to file extention mapping associated with the file extention, it gets encoded application/octet-stream. Outlook and OWA security both block attachments encoded application/octet-stream. Have you checked your mappings?

http://support.microsoft.com/kb/313730/en-us

 

[3Sixty]

Sorry the message gets stuck in the queue trying to connect to the mail provider and then returns a delay message and then a unable to send NDR with no reason other than to contact system admin.

Thanks,

Marshall

 

[3Sixty]

It also allows me to send some pdf files but for some reason not all of them. Could it be the version of Adobe the client is using? How do I configure the correct MIME for PDF. I do not see it as a default extension.

Any advise is greatly appreciated.

Thanks
Marshall