Using Roundcube Webmail 1.4.6 offered by a provider.
I created the folder Webmaster_at_mydomain. The folder does not have any parents.
All mails to webmaster@mydomain.de should be moved to that folder.
That is the complete sieve:
require ["fileinto"];
# rule:[Webmaster_at_mydomain]
if allof (header :contains "to" "webmaster@mydomain.de")
{
fileinto "Webmaster_at_mydomain";
}
But the mail is copied. It appears in the webmaster-folder and in the inbox folder. And I assume that mails are two different entities/files because when I delete one of them the other does not disapper.