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Popular

Free

For cost-free evaluation and small side projects. Try it out!

Solo

Working alone and need some extra oomph?

Essentials

The entry point for small teams.

Premium

More features for more people.

Business

For multiple dev teams within the same company.

Enterprise

For large organizations with serious email testing needs.

Emails per month 750 4k 100k 500k 3M
Number of inboxes
Organize emails per project, client, server and/or environment.
3 10 100 Unlimited Unlimited
Message throttling 10 / min 20 / min 300 / min 600 / min 1200 / min
Message retention 2 days Indefinite Indefinite Indefinite Indefinite
Max. emails per inbox 50 50 50 50 50
Max. email size 5 MB
during trial: 30 MB
30 MB 30 MB 30 MB 30 MB
Team members 1
during trial: 3
1 50 100 Unlimited
More information can be found below.

$ 0.00 / mo

$ 7.50 / mo

$ 75.00 / mo

$ 150.00 / mo

$ 300.00 / mo

Features: Get started
Get started

Billed anually. Monthly billing available at $8.50 / mo.

Get started

Billed anually. Monthly billing available at $85.00 / mo.

Get started

Billed anually. Monthly billing available at $170.00 / mo.

Get started

Billed anually. Monthly billing available at $340.00 / mo.

Forward mails to real email address
Send trapped messages from MailSpons to your own inbox.
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SMTP envelope info
HELO/EHLO, RCPT TO (BCC) & MAILFROM (Bounce address)
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Connection info
IP address, port, encryption method & TLS version
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Public email address
Each inbox has its own unique public address.
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Wildcard email addresses
Generate unlimited email addresses per inbox in the form of:
6c77cdbbdfab+anything-goes-here@mailspons.com
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Customizable email addresses
For example: coolproject@mailspons.com
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API access
Documentation here.
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during trial
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SpamAssassin integration check
during trial
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Chaos mode
Test how well your application handles the unexpected.
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during trial
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POP3 access check
during trial
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User roles
Restrict who can do what.
Coming soon
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Enforce SMTP/POP3 encryption
Coming soon
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Enforce 2FA
Coming soon
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Support Best effort Email Email Email Email
Get started Get started Get started Get started Get started

How does the free trial work?

The trial period starts the moment you sign up. During a period of 60 days you'll be able to evaluate features normally only found in paid plans. If you like what you see, you can upgrade to a paid plan at any point during the trial. If you don't upgrade, some features will be disabled after the trial period ends, but you can continue using MailSpons for free. No payment information is required to sign up for the free plan.

What happens if I go over my monthly quota?

The excess messages get dropped. You can see when this happens in the web interface.

Will I pay VAT or other taxes?

MailSpons is a product of ReturnValue Software, a company based in the Netherlands. Whether we charge VAT depends on your location:

All prices on our site are shown excluding VAT.

Can I sign up for a paid plan without a VAT number?

Individuals inside the E.U. unfortunately can't sign up for a paid plan (yet). Please contact us to see if we can work something out. Outside the E.U. no restrictions apply.

In what currency do you charge?

To prevent unnecessary double conversion fees, customers inside the E.U. get charged in euros. Everyone else gets charged in U.S. dollars.

How does upgrading work?

Upgrades or downgrades between paid plans partway through your billing cycle get prorated.