Sending 1M Emails/Day Shared or Dedicated IP?

beauhightow

beauhightow

Member
Hi everyone,

We’re planning to scale up to ~1 million emails per day using Mumara. Currently we’re on a shared IP pool, but I’m confused:

Should we stay on shared IPs or move to dedicated IPs? Would love to hear from people actually sending at this volume.

Thankyou
 
If you're seriously sending 1M/day, this isn’t even a debate.

Dedicated IP is the correct setup.

Shared IPs are fine for:
  • Small senders
  • New accounts
  • Low volume (under 100k/day)
  • Testing campaigns
But once you cross 300k–500k daily volume, shared becomes risky.
 
Well, that is quite thoughtful you have asked and this is where many users misunderstand scaling.

On shared IP:
  • Your reputation = influenced by others
  • Their spam complaints = affect you
  • Their bad data = affects inboxing
Now imagine sending 1M/day and someone else in the pool suddenly blasts cold traffic.
Inbox placement drops and you have zero control.

At 1M/day, control is everything.
 
In real Mumara scaling scenarios, here’s a typical structure:
- 1M/day → Minimum 4–6 dedicated IPs
- Proper IP warm-up schedule (20–30 days)
- Domain alignment (SPF, DKIM, DMARC configured correctly)
- Segmented sending (not blasting entire list at once)

Here is an example instead of:
❌ 1,000,000 emails in 4 hours

Do:
✅ 200k per IP spread across the day
✅ Start with engaged users first
✅ Then gradually expand to colder segments

This keeps the reputation stable.
 
True but think long-term ROI.

If shared IP causes:
  • 5% inbox drop
  • 0.1% complaint spike
  • Domain reputation damage
That’s way more expensive than IP cost.

At 1M/day, even a 3% inbox improvement means:
-30,000 more emails landing in inbox daily
-That’s serious revenue difference.
 
Yes, but only in specific cases:

✔ Extremely clean opt-in database
✔ High engagement rate
✔ Controlled shared pool (quality-managed by provider)

But even then, once you consistently hit 1M/day, serious senders move to dedicated.

Mumara supports both models but scaling brands usually choose:
-Dedicated IP
-Multiple IP rotation
-Gradual warming
-Engagement-based sending logic
 
Yes, don’t just think IP. Think ecosystem:

✔ Dedicated IPs
✔ Proper DNS authentication
✔ Segments (engaged first)
✔ Bounce & complaint monitoring daily
✔ Gradual ramp-up

Sending 1M/day is not about power It’s about discipline.
 
This helps a lot.
Looks like we’ll move to dedicated with controlled warm-up and I guess thats the professional move
once volume crosses 7 figures daily, infrastructure decisions matter more than content.
 
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