If your billing page shows a different cycle than you expected — for example "monthly" when you thought domains were yearly, or a checkout total that's higher than the mailbox price you first saw — this is almost always because mailboxes and domains are billed separately. Here's how it works.
Mailbox plans and domains are billed separately
Your mailbox plan can be billed monthly or yearly, depending on the plan you chose.
Your domains are a yearly registration fee of $15 per domain, per year. This is charged annually and is separate from your mailbox subscription.
Because these are two separate items, your total at checkout includes both the mailbox plan and the domain registration — which is why the total can be higher than the mailbox price shown on its own.
The mailbox subscription fee includes usage, bandwidth, API, MCP, and sending services, ensuring there are no hidden fees.- Mailboxes associated with the maildoso.email domain are free of charge. These complimentary email accounts do not incur any additional costs.
Your mailbox plan can be billed monthly or yearly, depending on the plan you chose.
Your domains are a yearly registration fee of $15 per domain, per year. This is charged annually and is separate from your mailbox subscription.
Because these are two separate items, your total at checkout includes both the mailbox plan and the domain registration — which is why the total can be higher than the mailbox price shown on its own.
The mailbox subscription fee includes usage, bandwidth, API, MCP, and sending services, ensuring there are no hidden fees.- Maildoso plans also include domain slots, which provide the right to register a domain through Maildoso’s platform. Domain slots are not prepaid domains and are not limited to connecting external domains.
When your account combines mailboxes and domains, the billing page may label the overall subscription as "monthly" while the domain portion is still a once-a-year registration fee rather than a recurring monthly charge. The way the cycle is displayed does not change the total amount you pay — your domains are still billed as a yearly registration. This monthly display is a display artifact from the payment processor and does not reflect the actual billing cycle. The same display quirk can make a "next payment" figure look as if domains were being charged monthly; if a number on your billing page doesn't add up, ask us and we'll confirm the exact upcoming charge for your account rather than reading it off the page. You can also verify the annual billing cycle by checking the billing description on the payment processor's page. If you were actually charged for domains again a month after buying them, that's a billing error, not the policy — tell us and we'll correct the subscription and refund the extra charge.
When is my next charge?
The "next payment" date on your billing page is your mailbox plan renewal date.
Your domain registration renews once a year on its own renewal date, as long as your subscription stays active.
It's normal to see the mailbox renewal and the domain renewal as separate dates and separate charges.
What's included in my mailbox subscription?
The mailbox subscription covers all essential services, including usage, bandwidth, API, MCP, and sending services.
There are no additional or variable charges for these services, ensuring a transparent pricing structure.
Combining Maildoso SMTP mailboxes and Google Workspace mailboxes on one invoice
The mailbox subscription covers all essential services, including usage, bandwidth, API, MCP, and sending services.
Additional features include IP Rotation to improve email deliverability, Self-Healing Mailboxes for automatic issue resolution, and Free Deliverability Audits to optimize email campaigns.
There are no additional or variable charges for these services, ensuring a transparent pricing structure.
Switching a mailbox between SMTP and Google Workspace before a renewal
If you want to switch mailboxes between SMTP and Google Workspace before your next renewal so the upcoming invoice reflects the new plan type, contact us with your account email and which mailboxes should switch — this isn't a self-serve toggle, since it affects both provisioning and the next invoice's pricing (and switching to Google Workspace needs unused Google Workspace allotment on your plan). Doing this ahead of your renewal date avoids being billed once for the old plan and having to adjust afterward.
Quick recap
Mailbox plan: monthly or yearly.
Domains: $15 per domain, per year, billed annually.
Domain registration costs are non-refundable; mailbox plan refunds follow our 30-day new-user guarantee.
The mailbox subscription fee includes usage, bandwidth, API, MCP, and sending services, with no hidden fees.- Mailboxes associated with the maildoso.email domain are free of charge and do not incur any additional costs.
If your billing still doesn't look right after reading this, contact us and we'll review your specific account and make sure you're charged correctly. Related: How much do SMTP mailboxes cost? Volume pricing tiers · Invoices and receipts · Do you offer monthly plans? · Refunds and cancellations
Mailbox plan: monthly or yearly.
Domains: $15 per domain, per year, billed annually.
Domain registration costs are non-refundable; mailbox plan refunds follow our 30-day new-user guarantee.
The mailbox subscription fee includes usage, bandwidth, API, MCP, and sending services, as well as additional features like IP Rotation, Self-Healing Mailboxes, and Free Deliverability Audits, with no hidden fees.