Hi. First here's our setup. Linux FC6 apache, php.
Imap proxy, zend optimizer squirrelmail of course.
For the smtp and imap Exchange 5.5.
We have had sluggish response when going to the Inbox, Sending E-mail, and
loading configtest.php.
I read a tip from squirrelmail about a name resolution issue. This made sense
since when our internet connection was not active (and dns was not available to
try and resolve an internal network host)the sluggish response for
configtest.php loaded instantly.
I added the hosts entry for the squirrelmail server.
This solved the configtest.php slow load time. But it did not help sending
smtp mail, or loading the inbox. This had me stumped. But i vaguely remember
that squirrelmail ran fine on a linux box and I remembered that it had samba
running on it using our WINS server. SO i figured we could add a LMHOSTS file
that preloaded a name (any name) for the squirrelmail's IP.
LMHOSTS
192.168.1.x anynameyouwant #PRE
The #PRE must be all Caps and it will preload that server's name into the
netbios cache thus stopping any attempt to resolve the name via dns.
And it WORKED. Loding the inbox always took 6 seconds as name resolutin
failed. Now it takes 1-2 seconds. Unfortunately our IMAP does not support
sort so I had to disable it in our config.pl.
Finally using squirrelmail is not an aggravating experience.
HOWEVER, there is still massive slow down if a user tries to sort e-mail by
name, time received, or subject. Is there any solution to that? It's just a
small hurdle but it would be nice if we cleared it.
Thanks for any help you may provide.
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