dns and email server. i just make aliases that point to a single imap account that is unique for everything i sign up for. if i start to get spam, turn off the alias. it also lets me see who is selling my info or has been hacked when bestbuy@example.com starts getting emails from russia.
> i just make aliases that point to a single imap account that is unique for everything i sign up for.
I do the same. One of the many joys of owning your email.
Deploy email server on a vps is super risky and troublesome
I've built email servers that sent 15 million emails a day into all of the major inbox providers, so you could say I know a thing or two about it. This wasn't spam, it was legit doubple-opt in.
It depends on your use case, and ability to actually administrate it properly.
It can vary, I did it for a few years with no issues or deliverability problems
Luck of the draw due to IP address reputation. I host my email on a $5 VPS, but the IP has mapped to my VPS for like 15 years so it's fine.
You never really know though, do you? Some things are ending up in spam and you don't know which ones.
This is why mailbox providers provide feedback, and let you see how they see your IP and domain reputation. Google Postmaster Tools is free to set up. I also suggest feedback loops, which most major mailbox providers support. There are also a plethora of free lookup tools that will tell you about the history of an IP. If you spin up a VPS and get a crappy IP, just destroy it and create a new one and check it's IP. Lather, rinse, repeat until you get an IP that either doesn't have a negative rep, no reputation, or you get lucky and get the IP from my last VPS that had a stellar IP rep. until I moved to a new VPS provider.
https://en.wikipedia.org/wiki/Fear,_uncertainty,_and_doubt
The comment is honest and does happen sometimes. Your "cool words" don't make sense.
Email delivery is never guaranteed.
Lol no and no
I've been doing this for over a decade, and I've never had one turn to spam yet.
I do think about it sometimes when databases leak, though.
I had an abandoned ISP email account dating to the 90's that I used before I sold my soul to Google. Out of curiosity, I resurrected it, last year, and sure enough, it has been chunking away receiving about 400 spam email messages a day.
To be honest, I did use it as a sacrificial email account for a while, used to sign up for websites that weren't completely trustworthy back in the day.