If your time is worth Zero then your math is correct. Here’s a hint: I started running my own email servers in 1997 and I eventually ended up using all of the

If your time is worth Zero then your math is correct. Here’s a hint: I started running my own email servers in 1997 and I eventually ended up using all of the above I suggested. Sending email is not the same thing any more. My best bud is a Chief Engineer at a large ISP and he and his teammates code and config their custom Carrier Grade email sever Farm. They have a 60PB mail store. He says 93% of all email that arrives is SPAM that is summarily discarded after being scored by their third party service similar to BrightWorks. We’re talking emails that NEVER hit your Junk Folder, just drained into the bit bucket. So if they did not stop these emails, their mail store would be ~1,000PB. If your email doesn’t walk the line carefully, you have a 93% chance of it being vectored into space. If you want to reach @gmail @icloud @outlook etc you don’t have the skills to do it at scale. Delivering 100 emails is not the same thing as delivering 5,000.