I've just purchased a VPS Bulk Sending Emails on DailySender. My purpose is to send newsletter to my subscribers (30,000 subscribers). I don't want to pay Mailchimp much more. That's reason why I build my own email server. The problem is I've got 91% soft bounce. Only 9% of 30,000 subscribers receive my newsletter.
Please look at the below URL to see if I miss out something (I purchased VPS-1):
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I am using Interspire. I want to establish long-term relationship with you. If you can solve the issue for me, you will get a lot of orders from my clients.