PTL-1557: How To for Email with attachment

[wjhendry]

ATENTION! YOU SHOULD NOW BRANCH FROM PREPROD WHEN YOU UPDATE

• Please check the internal contributions guide for details

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Thank you for contributing to the documentation.

Do the changes you have made apply to both Current and Previous versions? Current

Have you done a trial build to check all new or changed links? Yes

Is there anything else you would like us to know? No

This week's exciting advice from the style guide

• Write your headings in sentence case:

  • A good example This is a correct heading.
  • A Bad Example This is not a correct heading.