Inbox storage

Storage belongs to each inbox. Adding another inbox does not increase the space available to your existing inboxes.

Check or add storage

Open Inbox → Manage inboxes, select the address and open Storage. You can also open storage options beside the usage summary in the inbox view.

The screen shows the selected inbox, its current usage and allowance, and any available upgrade. The standard paid upgrade is 10 GB total storage for US$5 per inbox per month. It is not an extra 10 GB on top of the existing allowance, and it does not apply to every inbox in the account.

Choose Continue to checkout to review and complete payment. Until payment is confirmed, the existing allowance stays in place. If confirmation is delayed, choose Check payment status rather than starting another purchase.

Availability depends on your billing provider; the screen shows your account's actual offer. No purchase starts automatically when storage runs low.

When an inbox is full

Nitrosend shows a warning as the inbox approaches its limit. New messages that do not fit cannot be saved; messages already stored remain available. Add space or remove messages you no longer need before the inbox fills up.

The inbox view also shows the applicable message-retention policy. Check that policy separately from the storage allowance.

Cancel or resume renewal

Use Storage on the same inbox to cancel renewal. The upgrade remains available until the paid term ends. Existing messages are not deleted because you cancel, but the lower allowance can prevent new mail from fitting.

The same screen lets you resume renewal, complete an unpaid checkout or review a payment issue. Cancelling an unpaid checkout does not change the current allowance.

See inbox setup or email copies with Coexist.