Running your own SMTP server gives you full control over sending reputation, authentication configuration and any custom routing logic, instead of depending on a third-party relay's shared infrastructure and pricing tiers.
A dedicated IP (to keep your sending reputation independent), Port 25 access for outbound delivery, correctly configured DNS records (SPF, DKIM, rDNS), and enough server resources for your expected volume.
They overlap significantly — an email marketing VPS is often an SMTP VPS running additional campaign software like MailWizz or Mautic on top.
Postfix, Exim, Haraka and most open-source mail transfer agents are commonly used.
Yes, for direct outbound delivery; without it, you'd need to route through a third-party relay instead.
Yes, every plan includes a dedicated IPv4 address, open Port 25 and full root access suited to running your own SMTP server.
Port 25 open, dedicated IPv4 and full root access — starting at $4.95/month.
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