# How many mailboxes do I need?

> Work back from volume: mailboxes x daily limit (30/day by default).

Source: https://warmerly.com/docs/faq/how-many-mailboxes-do-i-need

Work back from volume: mailboxes x daily limit (30/day by default). For 300 sends a day you

## More from Frequently asked questions

- [Can support change my plan for me?](https://warmerly.com/docs/faq/can-support-change-my-plan-for-me): No - plan changes are always yours to make, with your own card, at Settings > Billing.
- [Do I have to set up DKIM, SPF and DMARC?](https://warmerly.com/docs/faq/do-i-have-to-set-up-dkim-spf-and-dmarc): Yes, for anything you intend to send at scale.
- [Can I use a shared or alias mailbox?](https://warmerly.com/docs/faq/can-i-use-a-shared-or-alias-mailbox): Yes, with the SMTP/IMAP username set to that mailbox's own address, provided the signed-in