I put in a support ticket over at Inmotion pointing them to my Forum and described the problem in general. Here is the response I got:

Quote
The latency is likely being caused by the outbound filter. You would be able to disable this logged in as the root user in Web Hosting Manager (WHM), and going to Exim Configuration Manager. You would then turn off outbound scanning.

Does that sound like it might be a solution for slow (30 sec) posting problems? Or, unrelated?

Bill

ECN Electrical Forum: https://www.electrical-contractor.net/forums/ubbthreads.php
My Day Job: https://www.licensedelectrician.com/