HTML Mails from one Domain are displayed incorrectly

🍱 Features & apps 💌 Mail
1

All mails received from heise.de are malformed in the mail app:

grafik
grafik563×568 32.1 KB

Snappy Mail (on the same Nextcloud instance) and Roundcube (E-Mail service provider) display the mails correctly. The mails are also displayed correctly after exporting the mail from the mail app and opening with Outlook or Thunderbird.

Is this a settings issue, or is it a bug?

2

It looks like a :bug:

Please create a report at GitHub - nextcloud/mail: 💌 Mail app for Nextcloud and share the message source as eml or txt if possible.

3

Bug Report created: HTML Mails from one Domain are displayed incorrectly · Issue #8819 · nextcloud/mail · GitHub