Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?

ending an email with attachment from the command line using mail

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

touh some\ file.txt
echo "hello world" | mail -s "test from mailutils" your@emailaddress -A some\ file.txt

   * What was the outcome of this action?

email will have an attachment called "some"

   * What outcome did you expect instead?

email should have an attachment called "some file.txt"

This seems fixed in buster

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