I'm a Noob here, but it's not my first rodeo... I searched first like a good boy ) I followed topdog's HOWTO on configuring DKIM with Postfix and my Mandriva 2008.1 box. It did require a bit of massaging to get it to work, but in the end things cooperated. My mail is being signed and I have successfully tested mail in and out. I spent some money on Paypal the other day and I think it's trying to send me the receipt. I keep getting the following error in my log that implies DKIM is having trouble parsing the headers in Paypal's message. I changed the header check from simple to relaxed just for fun (it shows up as Relaxed/Simple when I do ps -ef to make sure it's running) and it's of no help. Any ideas on how I can fix this, or is it a Paypal thing?? Here is a log snip: Jul 23 12:53:40 donsworld dkim-filter: 8CA3DF5A99: dkim_eoh(): internal error from libdkim: dkim_canon_selecthdrs() failed during canonicalization Thank you to anyone.