Unlimited Email Hosting: What You Need to Know

Published October 4, 2024 · Updated July 18, 2026 · Send Unlimited Email

"Unlimited email hosting" shows up on every hosting plan - but what does it actually mean, and where are the hidden limits? Understanding the fine print saves you from a nasty surprise mid-campaign. Here is what you need to know about unlimited email hosting.

What "unlimited" usually means

Unlimited email hosting typically means unlimited mailboxes and storage on your domain - not unlimited sending. Most hosts quietly cap outbound mail (often a few hundred per hour) to protect their shared IPs, so "unlimited" rarely covers bulk campaigns.

The distinction that matters

Feature	Shared "unlimited" hosting	Dedicated SMTP
Mailboxes	Unlimited	As needed
Outbound sending	Capped per hour	Unlimited
Sending IP	Shared	Dedicated

Read the fine print: unlimited mailboxes is great for receiving; unlimited sending is a separate product. If you run campaigns, you need a dedicated SMTP, not just "unlimited hosting".

No limits, your IP

Unlimited email on a dedicated SMTP

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Frequently asked questions

Does unlimited email hosting mean unlimited sending?

Usually no - it means unlimited mailboxes and storage. Outbound sending is typically capped per hour on shared IPs.

How do I get truly unlimited sending?

Use a dedicated SMTP server with its own IP - it removes the outbound caps that shared hosting imposes.