A powerful server sends emails faster, but inbox providers don't care how fast you can queue messages — they care about your sending reputation. A brand-new dedicated IP has no history, so gradually ramping up volume (IP warm-up) matters more than raw throughput in the first weeks of sending.
Never share an IP with unrelated senders for bulk sending; a shared or previously-abused IP can sink your deliverability before you send a single message.
Direct SMTP delivery requires Port 25; if your host blocks it, you'll need a relay service as a workaround.
A PTR record matching your sending domain passes Forward-Confirmed Reverse DNS checks many providers run.
MailWizz, Postal or PowerMTA all process a database-backed queue that benefits from real CPU headroom at scale.
Warm-up schedules vary, but gradually increasing volume over roughly 2-4 weeks is a common approach before sending at full intended volume.
Yes, by relaying through a third-party SMTP provider that handles delivery on your behalf.
Sending full volume immediately on a new IP without warm-up, which often triggers spam filtering before a sending history is established.
Yes, every plan includes a dedicated IPv4 address and open Port 25 for legitimate opt-in bulk sending, under our Acceptable Use Policy.
Dedicated IPv4, Port 25 open and NVMe storage — starting at $4.95/month.
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