20k letters per month - how to send?

Question

Email

Advise how you send mail? I tried sendgrid for $14 a month and ran into gray IPs that are in the spam block. Letters are not mailing.

Answer 1

what to send?

Mailjet, Mailgun, Amazon SES, Elastic Email.

Tried sendgrid for $14/month and ran into gray IPs

Write to support, describing what suffering you experienced. The money must be returned.

Answer 2

For some reason, the idea came to rent from Yandex in the VPS cloud and collect a potochvik on it ...