Marc Haber wrote:
which will return (modulo bracketing and other syntax errors) the
second field of any line (the first line?) in /etc/exim4/passwd.client
for whose first field exists an A record pointing to the IP address of
the we are actually talking to.
I suspect you'd find that to be too many A-lookups to be doing,
even with a local DNS cache.
Must you index by name not IP?
- Jeremy
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