My boss (who can see the physical Imail server at her location) added the spam filter service recently, but I'm curious... would that likely cause the machine to slow down in its deliveries? When I recently sat in front of the server, I didn't notice the GUI creeping along (no unresponsive or hesitant mouseclicks, no slow page redraws, that kinda thing) so I'm presuming that the machine itself isn't tasked very heavily.
The catch here isn't CPU usage, it is network delays. When you run DNS-based spam tests (or other network-based spam tests, such as reverse DNS testing and trying to verify the sender), it takes time to get the responses back.
But if I send a message from a web-based service to work (or a reply back), it seems like there's a distinct lapse in the time (ten to thirty minutes by different accounts) it takes to send and receive said messages. Prior to the spam filter install the server was spot-on, with no more than a minute's length to get email. Does anyone have any knowledge about this phenomenon?
It definitely shouldn't take 10-30 minutes. What you can do is check the IMail SMTP log file and the IMail anti-spam log file (assuming you are using IMail v8's anti-spam; otherwise, you can check the Declude JunkMail log file) to get a better idea of where the delay is.
-Scott
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