attachments received are jibberish
I upgraded my wife to 10.4 just yesterday and now she is experiencing the same thing with MS Word files from her students.
Here's an example of just a small portion of what appears in my email text instead of the attachment i should have received:
--== _ZMF1618_==
Content-Type: application/octet-stream; name="ed205_001.jpg"
Content-disposition: attachment; filename="ed205_001.jpg"
Content-Transfer-Encoding: base64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 jp6vHy8/T19vf4fr/xAAfAQADAQEBAQEBAQEB
AAAAAAAAAQIDBAUGBwgJCgv/xAC1EQACAQIEBAMEBwUEBAABAncAAQIDEQQFITEGEkFRB2FxEyIy
gQgUQpGhscEJIzNS8BVictEKFiQ04SXxFxgZGiYnKCkqNTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNk
ZWZnaGlqc3R1dnd4eXqCg4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfI
ycrS09TV1tfY2dri4 Tl5ufo6ery8/T19vf4fr/2gAMAwEAAhEDEQA/AP1Tor5q/bM8W654Xh8K
jRdZ1DSDOl75psLp4TJt8nbnaRnGTj0ya+U