I'm having a problem with some of my Exchange users. Problem is as follows::
One user is configured to use 4 mail accounts, the users setup on the workstation is set to pop/smtp instead of exch connection, I know this is not ideal.
This same user sends out mails with attachments on a daily basis without any problem, however, in the last 2 days the user has been unable to send attachments to other users on the same Exch server. I have tested it with all 4 accounts that are used and same result, if the user sends to an external person (gmail for example) the mail is received with all attachments.