Support for alternative parts other than text/plain and text/html
md5 opened this issue · comments
We have an application that sends out emails with the following structure:
multipart/alternative
text/html
text/calendar
This mimics the style of emails sent out by Outlook, allowing invitation emails to be sent (and canceled) from a Rails application with native Outlook "Approve/Tentative/Decline" buttons.
I wanted to use premailer-rails
to allow us to easily style these emails, but unfortunately it munges this email and drops the text/calendar
part when it adds the text/plain
part. I think I could probably get it to work by disabling the generation of the text/plain
part, but I ended up falling back to inline styles and removing premailer-rails
for the moment.
It would also be good to deal with messages that are structured similar to how Google Calendar structures its invitation emails:
multipart/mixed
multipart/alternative
text/plain
text/html
text/calendar
application/ics
Thanks for your input. Indeed, premailer-rails is a bit naive about this, judging by a quick look at the code. I think it simply grabs the text/html
part and replaces it by a multipart/alternative
that contains a text/html
and a text/plain
part.
This would be great for another reason as well: if you don't want to rely on premailer to generate the text/plain portion, there is no way to do this. Premailer clobbers whatever plaintext you may have created in ActionMailer.
PRs welcome ❤️