Vivaldi_Webmail_Filters

Post:

This is just an observation, and doesn't require a specific response. Duckduckgo.com has just started their email forwarding service using @duck.com email addresses. I recently signed up for one, and have been forwarding to Vivaldi webmail.

In Vivaldi webmail I have some filters set to direct emails into specific folders, but I've noticed that the rules don't handle the duck.com forwards as expected.

Here is an example "From" header (obfuscated):

From Amazon.com Reviews (via duck.com) on 2021-08-30 10:03

In Vivaldi webmail I have a filter set to move the following to my Amazon folder.

Rule:

From contains  Amazon.com

Apologies again for trying to write around the filter; it makes the post look muddy.
Even though the Amazon.com is clearly shown in the webmail header, it appears the filter isn't parsing that part of the header, and is probably only looking at duck.com, and isn't moving the email to the folder.