Re: [Bug-mailfromd] how are dns lookups done

["Sergey Poznyakoff" <gray@xxxxxxxxxx>]

Hi Marc,

> This makes me wonder about what happens at what failure, is eg a 2nd
> nameserver listed in resolv.conf tried?

That depends on a nature of that failure.  If the server times out,
then next server from the list is tried, wrapping over the end of
list if necessary.  But if the server gives any definite answer
(NXDOMAIN being onef them), no retries will be done.

> Is it possible to configure some sort of dns exception
> handling, timeouts? 

No, actually it is not possible.

Kind regards,
Sergey