What service or software would you recommend for e-mail mailing (all services consider our mailing list to be spam)?

Question

Email Marketing

Recommend some software or service for e-mail distribution. used unisender, sendpulse and they consider our emails to be spam. Those. we need a service\software with the ability to send spam.

Answer 1

Why do they think so, you ask?
Are you sure you're removing people who click the unsubscribe button from your mailing lists?