Speed is your enemy.  When a domain receives too many emails too fast, it starts chucking them in the junk mail folder.  You should in fact limit your delivery rate.  Gammadyne Mailer has a feature called the “Universal Domain Throttle”.  … (more)

Gammadyne Mailer is Windows software with a free trial.  Because it is an up-front purchase, over time it is much cheaper than paying a monthly fee to an email service.  There is no per-email fee because it relays the emails … (more)