On Tue, 19 Aug 2008, Phil Pennock wrote:
>
> The problem with this patch though is that if the last record has the
> lowest MX then it won't fall back.
Exim has a hard limit of 2048 on the size of a DNS response (unless the OS
defines a bigger limit, but most OSs set it at 512) so it's going to
drop parts of a very large MX RRset anyway. I don't think this is really
worth worrying about.
However, to be safe, all the dn_expand calls need to be checked for
overflow (how annoying) so the patch isn't quite complete.
Tony.
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