SMTP like elasticemail or mailjet, but in Russia?

Question

SMTP

Good afternoon, dear participants!
There are 2-3 domains with mail. One of the domains has a website where registered users can receive emails (notifications, new passwords, etc.). These are not mailings, these are approximately 5,000-10,000 simple letters per day, 1-10 KB each.
On other domains, internal mail is sent there, no more than 100 letters per day. I wanted to transfer all this to some one normal service in order to have a delivery guarantee, statistics and bounced control, etc.
In the future, email newsletters may be needed and there may be SMS notifications.
Prior to fluctuations in the exchange rate, the options from the headline were considered, but now they are more interested in Russian counterparts with payment by bank transfer.
Maybe someone familiar with this market and tell me? Thanks in advance!