Thanks Lena for replying. I already have check_rfc2047_length = false set in exim.conf
On Tue, 23 Jul 2024 at 17:40, Lena--- via Exim-users < exim-users@lists.exim.org> wrote: > > From: Vaibhav Chauhan > > > headers charset "UTF-8" > > > if > > $header_subject: contains "??" > > > The issue is when I send an email from something like google or outlook > the > > filter is not detecting because of this mail agents send base64 encoded > > content and exim not decoding it. > > Likely you need to insert at the beginning of your Exim config: > > check_rfc2047_length = false > > > > -- > ## subscription configuration (requires account): > ## > https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ > ## unsubscribe (doesn't require an account): > ## exim-users-unsubscr...@lists.exim.org > ## Exim details at http://www.exim.org/ > ## Please use the Wiki with this list - http://wiki.exim.org/ > -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## exim-users-unsubscr...@lists.exim.org ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/