Can an email addresse be banned?

Hey!

Currently trying to set up a newsletter where we obviously will send daily emails.
What's the max. amount we can send daily from our own domain?
How high is the chance that it gets into the inbox or into the spam folder?
Is it better to send from a whole new domain? For example the brand is called light.com and the email is [email protected].
Is it better to send from [email protected] (light.co domain)?

Secondly we send reminders to people who already received offers from us after a few weeks. So in a short amount we send a lot of reminder emails. Are they mostly going into a spam folder? Or are they getting into the inboxes? And how many can we send max.? In which time frame?
Better to send also from another domain?

Thanks!

IP and domains are registered in spam databases. Also, IP and domains have like a "trust score". The more you send from a domain, and the more quality you offer the higher such trust score.
So it doesn't matter where you send from, either one domain or another, but if you send too much bad quality, you might end tagged and in the spam mailbox of every person you send a message.

Personally I would rather choose a secondary IP and secondary domain (you can use a subdomain, like info.example.com for the delivery domain mail, but the secondary domain is also a good idea), specially if your site have transactional emails (like people registering and receiving an email to confirm their email address and things like that). Its a bad idea to risk your domain reputation just for badly or wrongly spaming

Okay I see. Thanks!

So how is quality email defined? What kind of content is bad and good?
Your recommdation is definitely to use a subdomain or even a whole new domain which is similar for newsletter and our reminders, right?

Are you sending to a cold list? Or an opt-in list?

They sure can be blacklisted. I wouldn't recommend cold emailing newsletters you need to warm them up first.