[Karlozkiller]

Thank you for that post. I've been trying some time ago, mostly for fun, to set up an email server. I did get one up and running with a setup similar to what you describe but was spam-filtered by Gmail as you describe. And because of this I kind of gave up.

But now I might try it again some time.

[pja]

You can expect a fresh IP from one of the cloud hosting services to be spam filtered out of the box by Google et al these days.

If you’re lucky, the IP in question hasn’t previously been used to spam & by very slowly ramping up your email rate Google will eventually decide that you’re probably OK. Getting this right appears to be something of a black art however :(

[j_s]

A discussion from long ago about Gmail deliverability:

https://news.ycombinator.com/item?id=9855030