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DNS Error:Timeout

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gillonba View Drop Down
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    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?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote LogSat Quote  Post ReplyReply Direct Link To This Post 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

LogSat Software

Spam Filter ISP
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