Which Smtp server should I use for a purchased list?
Which is better for purchased lists
Using a self-hosted email service's built-in SMTP server, which is shared_server. I have read that this negatively affects deliverability.
Or
Paid dedicated SMTP server like Amazon SES.
Or
Uploading the purchased list on multiple batches to an autoresponder like Getresponse and implementing this sending strategy.

What is the best choice for good deliverability?
"Opportunity is missed by most people because it is dressed in overalls and looks like work." Thomas Edison
"Opportunity is missed by most people because it is dressed in overalls and looks like work." Thomas Edison