I
need some help tuning Declude for performance. Up until now, I have been
adding tests mainly for spam filtering effectiveness. But I notice now that
the server can process about 7 messages per second with the spam
filtering off, versus only about 1-1.5 messages per second with Declude turned
on. I suspect the delays are mostly network IO bound; the processors and
ram on the boxes are relatively idle. When Declude is disabled, the CPU is
pinned between iMail and come custom database insertion services we have. We
do about 200,000 inbound messages a day between two servers, so the speed
issue really only comes up when mail has queued up for some reason and needs
to be de-queued.
Looking
at our test list (posted bellow), we likely have WAY too many dns blacklists.
That will be the first thing I look at. Any other suggestions?
I
don't think it's any one test, but this is what we have turned on:
AHBL WARN
BLITZEDALL WARN
CBL WARN
DSBL WARN
ORDB WARN
SBL WARN
SORBS-HTTP WARN
SORBS-SOCKS WARN
SORBS-MISC WARN
SORBS-SMTP WARN
SORBS-SPAM WARN
SORBS-WEB WARN
SORBS-BLOCK WARN
SORBS-ZOMBIE WARN
SORBS-DUHL WARN
SPAMCOP WARN
DSN WARN
NOABUSE WARN
NOPOSTMASTER WARN
BADHEADERS WARN
BASE64 WARN
CMDSPACE WARN
COMMENTS WARN
HELOBOGUS WARN
IPNOTINMX IGNORE
MAILFROM
WARN
NOLEGITCONTENT IGNORE
PERCENT WARN
REVDNS WARN
ROUTING WARN
SPAMHEADERS WARN
FIVETENSRC WARN
spamhaus WARN
dsbl WARN
njabl WARN
reynolds WARN
Orid WARN
Jamm WARN
AHBL WARN
sorbs WARN
dnsbl-1 WARN
dnsbl-2 WARN
surriel WARN
SNIFFER WARN
INV-URIBL WARN
IMAILSTAT
WARN
-Chase
Chase
Seibert | Network and Systems Engineer
| Bullhorn Inc. | 617.464.2440 x119
| www.bullhorn.com
