I want to know what platform solo ad sellers usually use to send clients email to their list
Do they use email marketing solution like Aweber, getreponse
or, 3rd party SMTP server like amazon ses, mailgun
or, self-hosted SMTP server
or, something else
also, want to know if there is a way to track how many optin's the client getting.
Sometime they claim to get less optins, but the fact is different