Re: Way to keep per-client whitelist?

Since the problem is the sending host then a global list should be fine 
as the broken sender could be sending to:

     [email protected] or [email protected]

My system is configured through a MySQL (MariaDB) database. You could 
use a plain text file.


At the top of the configuration where host lists and domain lists are 
specified:

###
### whitelist_hosts - specifies host that we just accept inbound - because
### they are 'broken' in some way and would otherwise be rejected by our
### checking mechanisms
###

WHITELIST_HOSTS = select host from whitelist_hosts where active='1';
hostlist whitelist_hosts = +ignore_unknown : +ignore_defer : ${lookup 
mysql{WHITELIST_HOSTS}{${sg{$value}{\\n}{ : }} }}



then in my acl_check_rcpt I check the host:

###
### acl_check_rcpt: This access control list is used for every RCPT 
command in
### an incoming SMTP message. The tests are run in order until the 
address is
### either accepted or denied.
###

acl_check_rcpt:

         //
         // other stuff
         //

         #
         # accept white listed hosts
         #
         accept  hosts = +whitelist_hosts
                 log_message = RCPT: Skipped checks because 
$sender_fullhost whitelisted in database

         //
         // other stuff
         //



Mike


On 04/02/2026 05:36, MRob via Exim-users wrote:
> Some user forward mails from another host, breaks SPF and other rules. 
> Some important forwarded mails must be whitelist.
>
> Is any way to keep a file like:
>
> forwardinghost.example: [email protected]
>
> So if mail coming from aaa.forwardinghost.example is from [email protected] 
> then make exim will accept mail.
>
> Is any way to parse file with that format to be used in ACL rules? Or 
> better solution
>
> TIA
>


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