Hi,
I can suggest on this job as per your requirement. as you have mention in your proposal that you want a skilled SMTP Server Developer to design and implement a reliable and efficient SMTP server for sending bulk emails
You can use or setup your own email server for sending huge volume. A setup with PowerMTA smtp for sending and a application ( Mailwizz)for sending and manage campaigns stats,fbl issues, managed bounces etc. PowerMTA can send 100k mails per day with 1 - 2 additional ips. For this setup I will suggest if you don't want to use third part SMTP than we can use PowerMTA for sending mails.I will host MW application on dedicated server and configure PowerMTA on another VPS/dedicated server also.
I have 4-year experience as a system administrator ( email delivery specialist ). My expertise is in DNS, Mail server( Postfix, Exim, Office 365, Google Workspace ),web server, Mysql, Cloud flare, Mailwizz, Mautic, PMTA , SMTP, DMARC DKIM SPF MX and sending and receiving emails issue, and cronjobs. I have also configured and set up SMTP, IMAP, Outlook setup or third-party SMTP.
Note: Sending emails to Gmail and Office 365/Outlook will be fine, but for Yahoo recipients, we need to configure a separate delivery server with a single IP and a single domain. And for good open rates we need white list domains and IPs.
Note: If you have better suggestions, I will follow your recommendations
We will discuss more on this if we connect on chat.
Thanks.