I have a linux server (suse 11.2) with postfix on it. I receive all mail, but when a mail has an attachment .doc or .xls I don't receive the mail and after a while the sender gets a message the server has timed out. When I change the extension it does the same, when I send a docx it goes allright, when I zip the doc it also goes allright. In the log-file it says nothing about the timeout.
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