One price per domain. Every mailbox included.

Filtering happens at the domain's MX records, so the domain is the natural unit. It also keeps your bill steady: hiring someone, adding a shared mailbox or creating an alias doesn't change what you pay. The trade-off is a monthly message allowance per domain, which we publish so you can check it against your real volume.

Filtering, quarantine, limits and outbound relay are identical. Protect Plus checks your MX, SPF and DMARC records daily instead of weekly, sends a monthly owner report that explains what happened in plain English, and includes a human setup session where someone works through your cutover with you.

A domain is one name that receives email, such as example.com, with its own MX records. Each separately protected domain is billed on its own. Domain aliases, meaning extra domains that deliver to the same mailboxes, are included at no extra charge.

We don't charge overage fees automatically. If a domain regularly goes over its included allowance, we contact you to agree a suitable arrangement. If we can't agree within 30 days, either of us can cancel that domain's subscription, and we refund what you prepaid for the remaining full months. If you expect a domain to get close to the allowance, tell us before you sign up and we'll look at your volume with you. The details are in section 4.3 of our terms.

Payments are processed by Stripe. Each protected domain has its own subscription, billed annually or month to month, and it renews automatically until you cancel. You can cancel any time in the billing portal; cancellation takes effect at the end of the period you've already paid for, and you aren't charged again. See our refund and cancellation policy.

Annual billing costs less per month: $144 a year for Protect instead of $180, and $228 a year for Protect Plus instead of $288. Where the billing portal lets you change plan or billing interval, it shows any prorated amount and the date the change takes effect before you confirm. If the change you want isn't offered there, email support@iblockspam.com.

There's no free trial. Instead, a domain's first annual subscription comes with a 30-day money-back guarantee: ask within 30 days of the charge and we refund it in full. Month-to-month fees aren't refundable, but you can cancel any time. The free health check and our other tools work without an account.

It covers the first annual subscription for each domain. If iBlockSpam isn't right for you, ask within 30 days of that charge and we refund it in full. Annual renewals can be refunded if you ask within 14 days of the renewal charge. Month-to-month fees and partial periods aren't refunded. The full rules, with worked examples, are in our refund and cancellation policy.

No. All prices are in US dollars and exclude any sales tax, VAT or similar taxes that apply where you are. Any tax is shown on your order before you pay.

Canceling stops renewal, and the service runs until the end of the period you've paid for. Before your service ends, we help you point your MX records back to your previous provider (or a new one) so mail keeps arriving. Your setup record keeps your original DNS values so the change back is quick.