Peeked at the source code, but it is outside my abilities to modify.
Wonder if it could be a feature request :)
On Tue, Oct 15, 2013 at 12:53 PM, Brent Jones <brent@???> wrote:
> What about extending the "defer_ok" function to ACLs other than callouts
> and virus scanning?
> That way, if you have an ACL that does a DB lookup, you can add the
> /defer_ok switch to the condition, and allow that ACL to accept itself if
> there is a problem?
>
> If you do this on blacklist or whitelist style ACLs, and not actual user
> lookups or routers, you can safely pass them, error on the side of caution
> if you wanted to just accept the message.
> I'll look at the source, to see what that defer_ok looks like
>
>
> On Sat, Oct 5, 2013 at 8:31 AM, Graeme Fowler <graeme@???> wrote:
>
>> On Fri, 2013-10-04 at 18:16 -0400, josh trier wrote:
>> > I am writing an ACL that a few of my relay servers will use. All is fine
>> > with code. However if the central database server can not be connected
>> to I
>> > want to disable the ACL to prevent messages from being rejected.
>> >
>> > Right now this is what happens if DB conn fails (example of stopping
>> mysqld
>> > service)
>> >
>> > SMTP>> 451 Temporary local problem - please try later451 Temporary
>> > local problem - please try later
>> > LOG: MAIN REJECT
>> > H=localhost [127.0.0.1] F=<root@???> temporarily
>> > rejected after DATA: MYSQL connection failed: Can't connect to
>> > local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
>>
>> Although that is indeed a rejection, it's a temporary one. Well-behaved
>> remote servers receiving that will simply re-queue the mail and try
>> again later.
>>
>> Jasen's readsocket approach might have legs, but I think I'd create a
>> shell or perl script that can give you a "DB is available" or "DB is
>> dead" response and call that from a warn statement using $run.
>>
>> That way you could set a variable and check for its value in later ACLs,
>> at the cost of making one extra DB connection per message.
>>
>> How to do that will be left as an exercise :)
>>
>> Graeme
>>
>>
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>
>
>
> --
> Brent Jones
> brent@???
>
--
Brent Jones
brent@???
