JoseCopovi
asked on
Email attachements sent using Outlook (all flavours) via Exchange 2007 - are being stripped down to 1kb and are unreadable when sent to external clients.
We have this week migrated servers to 2007 from 2003. This has pretty much gone smoothly - however an interesting problem has arisen. When PDFs and JPEGs and other file attachements are sent from Outlook clients to external clients they are stripped down to 1kb and are unreadable by those external clients. Internal client receive the full document no problem. I cannot work ou when the problem is. No limits have been set up as far a I can see - in terms of file size. An mailbox limits are no where near at capacity. Bit lost hope some one has an idea of what is causing this!
Exchange wouldn't do that on its own. Something else is doing it.
Anything else installed on the machine? AV, Antispam etc? Do outbound email go out through another service/server?
If it was limits then the message would be blocked, not stripped, as Exchange looks at the entire message for the limit.
Simon.
Anything else installed on the machine? AV, Antispam etc? Do outbound email go out through another service/server?
If it was limits then the message would be blocked, not stripped, as Exchange looks at the entire message for the limit.
Simon.
ASKER
Hi guys. Outbound email is sent out via SMTP directly from a second SMTP sender directly from the server. As for AV we have got Symantec Mail Security on the system. The attachements show as for example PDF but severely reduced in file size. The strange thing is that the gif image that is used in theie email signatures is sent intact.
ASKER
Just to update this if i zip the files they go through intact. Unzipped are replaced with placeholders at 0kb
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ASKER
OK I am going to to remove the Symantec applications, will let you know
What is the type of attachment that appear for external recepients?
Did you run the Update Rollup 5 after migration? - http://support.microsoft.com/kb/941421/