
PCNTL is installed by Default on Dreamhost Dedicated LAMP servers, so on campaign #3 I cranked it up to 50 threads processing 500 messages each, and ran through the entire 100k email list in about 45 minutes on our server.

So, now that I've done 3 or 4 big campaigns on MailWizz, I'm pretty happy with the platform. However, our send rate didn't seem to increase, and IEM offers ZERO tracking for deliverability, which is an issue that we ran into when we cranked up MailWizz the first time. That took a LOT of time to install (it requires ioncube, and since our command-line PHP is diff than our cgi PHP, it meant updating paths inside the add-ons files to get it working). It's single-threaded, so we purchased the Maborak multi-thread add-on. The PROBLEM started when we outgrew what IEM was able to send in a day. The price is a little painful at $450+ for each single-user license, but otherwise it's a good tool.

So here's the deal: IEM works great for what it does - if you want a solid, reliable, configurable email tool, it's wonderful. I've been using Interspire Email Marketer on a daily basis for 7 years, have purchased about 10 copies of it for various clients & corporations, and own 3 copies myself.and this week I'm busy switching my company over to MailWizz.
