Re: [exim] setup Exim to improve SMTP performance

On 2006-03-21 at 17:22 +0100, Olivier Bonvalet wrote:
> Have I to set anything else to improve perf ?

Local DNS cache, or LDAP slave if using LDAP for lookups.

If doing many file lookups per recipient, consider building the data
into CDB files for faster lookups.

/var/log being a different filesystem from /var/spool/exim/ (not just
for the hints).

Set split_spool_directory.

Look carefully at what happens with your exim Routers; are you
spam-scanning the outgoing mail once, at submission, or once per
recipient? If all mail sent to your mailing-list software is scanned
for spam and malware, then you probably can skip the scanning on the
resubmitted emails. Many "template" configurations route mail on a
per-recipient basis to spam-scanning first, because they're not designed
to deal with that degree of recipient fan-out.

-Phil