Yes absolutely. The results are actually useful, they don't have an incentive to keep you from finding what you are searching for. There is way less copywritten content and if there is, you can just block it.
Whenever I have to go back to "free" alternatives I am shocked by how much worse it is.
The threat model is that all communication is recorded and will be decrypted once the technology becomes available. The question then becomes for how long you want your data to be secure. If its for example 40 years, you need to chose an algorithm today that is still secure in 40 years.
I would recommend something like stalwart, which is just a single binary and works. Gives you a web interface and a zonefile you can just copy paste into your DNS including all correct DMARC DKIM SPF and autodiscovery records.
Setting postfix, dovecot etc. up from scratch can be a bit time consuming and annoying.
Deliverability depends on where it is hosted, many VPC providers IP space is completely blocked in spam filters.
Mark Wahlberg is a racist that once tried to beat a Vietnamese person to death while shouting "I hate the Vietnamese" and other racist shit in the past.
I understand this, but this is inconsistent behavior. You now use 22 inside your network and something else outside. Whenever you create inconsistent behavior, everyone using it has to have an awareness of all these inconsistent behaviors.
Also, it is hard to troubleshoot because the tool most admins would want to use (netstat) will not give you useful information to understand the situation.
If you have a drink that creates a nice tingling sensation in some people and make other people go crazy, the only sane thing to do is to take that drink off the market.
Her chair is still radioactive.