Has anyone here noticed a problem with vpopmail/qmail and the
authorized open smtp feature?

I've noticed that if the number of hosts in the 'relay' table is excessive
then the smtp server takes an extremely long time to answer.  The
connnection is established, but you don't get a "220 <hostname> ESMTP"
response for a very long time.

I've narrowed this down to the fact that it appears the entire contents of
the "relay" table in the vpopmail database appears to be loaded into
memory each time a connection is established.

Is there a reason this is done?  Would it not make more sense to take the
source ip address of the connection and somehow do a single comparison
on the table instead of loading the entire contents into memory?

If I sent this to the wrong list or I'm missing something glaringly
obvious, please let me know.   I am running clearopensmtp, but right now
with over 1500 hosts in the table it is causing Outlook and my network
monitoring software to time out connections.

-Jeff


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