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can't open PDF attachments

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Hi-

I had this working then it magically stopped about a year ago and I can't get it back. When I try to open a pdf I get "...could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file."

I have gone into settings and re-selected adobe acrobat and restarted but still can't open.

I am on a mac.

Thanks for your help! Crazy frustrating and time wasting issue.

Hi- I had this working then it magically stopped about a year ago and I can't get it back. When I try to open a pdf I get "...could not be opened, because an unknown error occurred. Try saving to disk first and then opening the file." I have gone into settings and re-selected adobe acrobat and restarted but still can't open. I am on a mac. Thanks for your help! Crazy frustrating and time wasting issue.

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If you're using one, try disabling your antivirus program.

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