@8a5294f4 Well I've not done exactly what you have so I maybe wrong here. Using say Mailchimp or even self-hosted solutions you end up using your own email address and verify it to your domain. So unless you self-host email, your email provider is responsible for looking after delivery problems, domain blocklists, spam, etc.
@053f521c That is what I'm trying to do, my own domain set up to send emails through some provider. But the services I tried kept blocking my accounts for no discernible reason
@8a5294f4 Do you have a proper DNS entries for DKIM and SPF along with using DMARC?
@053f521c No, the domain is not set up for anything yet, I was trying to make an account with a service so I can set it up. (Well, it is set up for Brevo now, I was able to sign up with them, so problem solved for now)
@8a5294f4 Well at least you have a solution. Good luck.