I'm wondering if this is normal behaviour for Mollom. When I first installed Mollom on my Drupal site, I set the When Mollom is down or unreachable setting to Accept all form submissions, thinking, well Mollom's servers are probably going to be up 99% of the time, so this setting is just for that minority of cases when Mollom might be down. However, when it was set up this way, I would still receive dozens and dozens of spam form submissions. It seemed like I didn't have Mollom installed at all!
So I switched the setting to Block all form submissions. This stopped the spam from coming in - I didn't get a single spam post, in fact - but I also didn't receive any comments on my blog posts.. maybe I received one message on my contact form. I hoped this was normal, but then I heard from someone last weekend that they tried to contact me through my website, and they said they had some trouble sending it. I never received their message.
Suspecting maybe Mollom was blocking even legit form submissions, I switched the above setting back to Accept all form submissions. Now after having that setting enabled for only half a day, I've already received about a dozen spam form submissions.
Is this normal? It seems the Mollom servers must be down so often that this setting really does has a major impact on the way form submissions are handled on my site.
I guess I wouldn't mind paying a little bit to get a premium account if I can be confident that access to the high-availability backend will solve these issues. But from what I can tell, Mollom simply doesn't seem to work that great in general.
If someone can prove me wrong - maybe show me that I still haven't got the configuration right yet - I'd greatly appreciate it!