Dedicated IP vs Shared IP for Email Sending
The trade-offs between a dedicated and a shared sending IP, and how to know which one your volume actually needs.
Should you send from a dedicated IP or a shared one? The honest answer depends almost entirely on your volume — and most senders need a shared IP, not a dedicated one.
Shared IP
Your mail goes out alongside other reputable senders on a pool the provider manages. The reputation is already warm, which is ideal for low-to-medium and bursty volume.
Dedicated IP
- You fully control the reputation — for better or worse.
- Worth it only at consistent high volume (tens of thousands per day).
- Requires careful warm-up and steady sending to stay healthy.
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API and visual editor, SPF/DKIM/DMARC out of the box, analytics and warm IPs. Free tier — 200 emails/month, no card required.
The volume rule of thumb
If you cannot keep a dedicated IP consistently busy, its reputation goes cold and deliverability suffers. Below that threshold, a well-managed shared pool will almost always outperform it.
Start shared, scale later
Begin on Sendersy's warm shared pools and move to a dedicated IP only when your volume justifies it. Start free.
Owns SMTP relays, queues and monitoring. Knows why a message is stuck before you ask.
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