The barrier to entry is certainly higher than setting up a web server, but it's not too hard.

Advice for improving deliverability would be to add SPF and DMARC records for your domain (don't worry about DKIM).

Other than that, if I end up in someone's spam filter, I tell them to fix their spam filter. If your spam filter is classifying legitimate emails as spam, it's a bad spam filter. Doesn't happen often though.