Hello!
On Wed, 01 Feb 2017 at 11:08:55 (+0200), Marius Stan wrote:
> I'm using this construct to select an outgoing interface:
> dkim_smtp:
> driver = smtp
> max_rcpt =9
> dkim_domain = $sender_address_domain
> dkim_selector = biz
> dkim_private_key = /etc/exim/private.key
> dkim_canon = relaxed
> multi_domain = false
> interface = <;${lookup mysql{Q_OUTGOING_INTERFACE}};$received_ip_address
> the Q_OUTGOING_INTERFACE query returns either an empty string or an IP
> address.
> In the case of an empty string exim should choose from the rest of
> values, e.g. $received_ip_address
> But in all cases I get this error, like expansion never happened:
> R=dnslookup T=dkim_smtp defer (-1): "" is not a valid IP address for
> the "interface" option for dkim_smtp transport
As far as I can see it's a documented behavior:
"Empty values and values containing spaces are double quoted, with embedded quotes escaped by a backslash."
> What can I do to get full debug on a transport ?
Should you just try to return default value from MySQL? Something like this:
SELECT COALESCE(`field_that_might_be_empty`, "$received_ip_address") FROM ... WHERE ...
> Using centos 7 with default exim-4.84.2
> Thanks,
> Marius
--
George L. Yermulnik
[YZ-RIPE]
