Deleting, replacing, cancelling, or downsizing mailboxes and domains all work a little differently — and SMTP and Google Workspace mailboxes are deleted differently. This guide covers what's reversible, how timing works, and when to contact support.
Before you delete anything
Deleting is one-way. A deleted mailbox or domain and its warmup/reputation history can't be restored from the dashboard, and recreating the same address is not the same as restoring it — warmup starts from zero (see Understanding your mailbox reputation scores).
Bulk-select applies to everything matching your current filter, not just what's on screen. Check the count in the confirmation dialog.
Deactivated is not deleted. A deactivated mailbox still exists and can usually be reactivated — see My mailbox was deactivated.
"Deletion scheduled · <date>" is not deleted either — the mailbox keeps running until that date.
Never delete or cancel the Google Workspace "Admin" mailbox if you want to keep any Google Workspace mailbox on that domain. It cancels the whole Google Workspace of the domain with every mailbox on it, no new Google Workspace mailbox can be created there, and the domain can't be used for Google Workspace again for about 11 months. See The "Admin" mailbox.
Don't delete anything that shows "Awaiting Renewal", "Processing" or "NS Not Set" to "fix" it — support resolves those on the backend (see Renewing your domains and mailboxes). Contact us first.
If you deleted the wrong mailbox, contact support right away with the address(es) and roughly when it happened. Recovery may be possible but isn't guaranteed — the sooner, the better.
How to delete mailboxes (self-serve)
Mailboxes you delete yourself; domains go through support (see Deleting a domain).
One mailbox: open it from the Email accounts list, scroll to the bottom of the details page and click Delete/Cancel.
Several mailboxes: on the Email accounts page, search or filter, select the mailboxes, then Bulk Actions → Delete selected accounts.
What happens after you delete: SMTP vs Google Workspace
SMTP mailboxes
Cancel keeps the mailbox working until the end of the current billing period (status Deletion scheduled · <date>), then its slot frees up. Delete removes it right away — you can also delete a mailbox that's already scheduled, without waiting for the date.
A deleted SMTP mailbox isn't cleared instantly — recreating the exact same address right away can return "already exists". Wait a little, or contact support to clear the old one.
A freed SMTP slot can be used for a new mailbox on any connected domain, via Add More Email Accounts.
Google Workspace mailboxes
There's no instant deletion. Delete and Cancel both schedule the mailbox for removal at the end of the Google Workspace billing period; until then it stays active and keeps its slot, and the same address can't be created again (an attempt shows Failed). Nobody — including support — can remove it earlier.
Full details, billing dates and slot reuse: Deleting a Google Workspace mailbox — how it really works.
Changing a mailbox's address (the part before the @) always means a new mailbox with fresh warmup; Google Workspace addresses can't be renamed at all. See Change names of mailboxes. If a swap lines up with your renewal, tell support at least 2 working days in advance so we can coordinate it.
Deleting a domain
Domain deletion isn't available in the dashboard — send us the list and we'll remove them. Transferring a domain out of Maildoso doesn't remove it from your subscription on its own; you still need to request removal or a slot reduction.
Tell us which of these two you want — we can't action the request without knowing:
Remove the domains and reduce your plan. We delete the domains and drop the matching domain slots. Your invoice goes down from your next billing cycle.
Remove the domains and replace them with new ones. Replacements registered through Maildoso cost the standard $15 per domain — see Domain replacement. A bring-your-own replacement has no registration fee: connect it via CSV upload or the Domains page and set our two nameservers at your registrar — ideally before the old domain is removed.
Also include:
The exact domain names — similar names are easy to mix up, and deletion can't be undone from your side.
Delete the mailboxes on those domains first (filter the Mailboxes page by domain → select all → Bulk Actions → Delete). For Google Workspace domains, remember that mailboxes stay active until their removal date.
Removing a domain doesn't refund its registration — domains are registered for a full year. Exceptions to the $15 fee: a replacement for a genuine blocklist problem on a domain we registered is free within the renewal window, and if a paid registration failed, the slot stays on your plan for another domain at no charge (see Why did my domain registration fail or get stuck?). A SURBL listing on its own doesn't require dropping a domain — read SURBL Listings and Deliverability Impact first. If replacing a domain from the dashboard throws an error, that's a known issue with that flow — contact support with the domain(s) and a screenshot and we'll do it from our side.
Reducing the number of mailboxes or domains in your plan
You're billed for the slots on your plan, not for how many you use. Deleting or cancelling a mailbox does not lower your bill by itself — the slot stays on the plan until the plan is changed.
Fewer mailbox slots: contact us with the number you want to keep. Reductions apply from your next billing cycle; if a renewal is about to charge, tell us the date and we can usually apply it before. For Google Workspace, do this before the Google line's renewal date.
Fewer domains: same request as Deleting a domain (first option).
Downsizing can remove mailboxes automatically. If you downsize below the number of mailboxes you have, the system removes mailboxes to match — you can't choose which. If you already have fewer mailboxes than the new limit, nothing is removed, so don't delete pre-emptively; ask us what would be affected first. If a downsize removed the wrong mailboxes or domain, contact support right away — we may be able to restore them (not guaranteed). Don't repurchase or recreate them blindly first.
Cancelling mailboxes — when they're removed and when billing stops
Cancelling stops the next renewal; the mailboxes keep working for the period you've already paid for and show Deletion scheduled · <date> until then.
The slots are removed at the end of the current billing cycle and your next invoice reflects the smaller number — provided the plan was reduced (see above).
Google Workspace mailboxes follow their own billing line, so the removal date can differ from your main invoice date — see Google Workspace billing dates.
Renewal date passed and the mailboxes are still there? The cancellation may not have been linked to the right mailboxes — contact us with the exact addresses and the date you cancelled.
Not sure you want to cancel? Tell us before the cancellation date and we'll check whether it can be stopped.
Doing it in bulk
For a large number of mailboxes or domains, send us the full list of exact names (and which domain option applies). We'll confirm the list back before anything is removed.
When to contact support
Reach out if you want a domain removed, deleted more than intended, something disappeared without you deleting it, you're unsure whether something was deactivated or deleted, a downsize removed the wrong things, a cancellation didn't take effect, or you want help choosing between deleting, replacing, reducing or cancelling. Include the affected names and the approximate time. If the delete controls show an error or are disabled, refresh the page and send us a screenshot.