> From: Brent Clark
> I seem to be having a problem with ${lc:$local_part}
>
> The following is in my access log.
> /usr/local/backups/mail/2010-04-14//incoming/1O21SI-0007EO-QK <system-filter>
Because $local_part is local part of recipient address.
Local part of sender address is in $sender_address_local_part .
Description of the $local_part variable explains:
| $local_part is set during user filtering, but not during system filtering,
| because a message may have many recipients and the system filter is called
| just once.
> Horrible hack, but I find this works.
>
> if $sender_address matches "([a-z0-9-]+)@" then
> noerror unseen save
> /usr/local/backups/mail/${substr_0_10:$tod_log}/${lc:$1}/outgoing/$message_exim_id
So, you wanted local part of sender address.