Dear development team. My providers uses Roundcube Webmail 1.6.10.
I am experiencing annoying incoming fake e-mails which have an attachment like *.gz *.rar *.gzip extension.
I want to setup a filter (/sieve) in Roundcube, so Roundcube moves these e-mail to the trash bin, from where they will be deleted.
One solution I found is here: https://jensknipper.de/blog/roundcube-sieve-filter-attachments/ , but I do not know how to implement it in Roundcube. (In this solution a zip-file is mentioned; in my case it is about gz, rar gzip-file.)
I tried to do it myself but was not successfull. Please see attached screenshot.
Is filtering on e-mails with a specific attachment possible? If yes, how? If not, can it be made?
Thank you! :-)