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DNS Error:Timeout

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: http://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6983
Printed Date: 16 December 2017 at 5:48am


Topic: DNS Error:Timeout
Posted By: gillonba
Subject: DNS Error:Timeout
Date Posted: 29 September 2011 at 11:16am
I am finding that for quite a few messages the connection to the DNS server is timing out.  Sometimes the lack of a reverse DNS check results in spam messages being forwarded rather than quarantined.  With message I am looking at right now, it appears that the timeout interval is 10 seconds.  Is there any way I can increase this timeout interval?



Replies:
Posted By: LogSat
Date Posted: 29 September 2011 at 10:55pm
Yes, you can modify it by changing this parameter in the SpamFilter.ini file:

;The timeout in milliseconds for all DNS-related queries.

DNSTimeout=5000


I would not recommend increasing it though, as if the DNS queries that SpamFilter makes (there can be dozens per email) take a long time to complete, the inbound mail queue can grow a lot while the inbound connections are "placed on hold" while the DNS queries complete.



-------------
Roberto Franceschetti

http://www.logsat.com" rel="nofollow - LogSat Software

http://www.logsat.com/sfi-spam-filter.asp" rel="nofollow - Spam Filter ISP



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