Send hybrid HTML + plain text to amnesia-news

From the discussion on how to inform better our users about new features:

http://lists.autistici.org/thread/20190514.135515.b4450a59.en.html

Right now people receive something like this:

https://redmine.tails.boum.org/code/issues/16888

It is:

• Unappealing and probably off-putting for most people
• Incomplete as it doesn’t include screenshots for example
• Hard to read and scan due to markdownish syntax and plain text

Sending HTML emails to amnesia-news might increase its popularity. For example, receiving release notes with their screenshots could help letting people know about new features.

rss2email seems to have some options to handle HTML emails:

   HTML conversion
              html-mail
                     True: Send text/html messages when possible.  False: Convert HTML to plain text.

              use-css
                     Use CSS

              css    Optional CSS styling

   html2text options
              unicode-snob
                     Use Unicode characters instead of their ascii psuedo-replacements

              links-after-each-paragraph
                     Put the links after each paragraph instead of at the end.

              body-width
                     Wrap long lines at position. 0 for no wrapping.

Next step is to test rss2email capabilities.

Parent Task: #16888

Related issues

• Has duplicate #16889 (closed)

Original created by @sajolida on 16723 (Redmine)