> My problem is that I'm aware a message is forwarded only at the routers level > (the final destination e-address is taken from /etc/aliases or ~/.forward) > and :at_start: option does not seems to work in transports
I'm not sure, but you can try: In routers place the content you need into address_data https://www.exim.org/exim-html-current/doc/html/spec_html/ch-generic_options_for_routers.html In the rcpt ACL you should have "require verify = recipient" (without callout). After that insert: warn condition = ${if def:address_data} add_header = :at_start:X-Forwarded-For: $address_data This assumes single recipient, but that's usually the case if forwarded. -- ## 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/
