SMTP server to send notification emails to the same or one different address?

Question

Mail server

Good evening. Please tell me some mail service that will allow sending letters with almost the same content from a mailbox to the same mailbox (or to another one, for example, from [email protected] to [email protected] or from [email protected]) via its smtp server smtp.com to [email protected]).
I will send through smtpjs.com (everything worked through a Yandex mailbox, sent from [email protected] to [email protected] and then the configured forwarding sent letters to my gmail, but after three weeks I began to receive an error 5.5.4 send AUTH).

The point is that I need to receive notifications to my mail (the text of the message changes quite a bit each time) from my chrome extension, up to 300 per day and without domain verification, just registered mail on their domain and that's it. Does such a mail service exist?

Answer 1

smtp.bz