#### Summary <!-- Provide a general summary of your changes -->
Access to the attachment ID has been added in the ???Email message???
codeunit. In addition to the name and other properties of the mail, the
attachment ID is also available via the ???EMail Message??? codeunit

#### Work Item(s) <!-- Add the issue number here after the #. The issue
needs to be open and approved. Submitting PRs with no linked issues or
unapproved issues is highly discouraged. -->
Fixes #2038 



Fixes
[AB#555473](https://dynamicssmb2.visualstudio.com/1fcb79e7-ab07-432a-a3c6-6cf5a88ba4a5/_workitems/edit/555473)