Our corporate email system adds this header, X-EXCHRULES: External_Sender_Banner, and within the email itself I see this; "*** External email: Verify sender before opening attachments or links ***"
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Saturday, June 19th, 2021 at 12:04 PM, Paul Gilmartin <[email protected]> wrote: > On Sat, 19 Jun 2021 16:23:05 +0100, Jeremy Nicoll wrote: > > > > Can it [EXTERNAL] be suppressed? > > > > Only if the listserv has configurable Subject editing, I expect ... > > > > or if it can be forced to reinstate the original subject in every > > > > reply it sends out. And that would be a problem when the > > > > discussions go off-topic and people edit the Subject: usefully. > > It shouldn't be LISTSERV's responsibility, but the originating > > client's. And it shouldn't make unconventional modifications > > to standard headers. Better to add something such as: > > X-Sourrce: EXTERNAL > > Or, the client's MUA could flag the message in the local display > > triggered by content found in Received: headers. > > -- gil > > ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
