Yes! It is not possible for a sender to work out your real email address from your Mailmask address.
The bandwidth usage for a given calendar month is calculated as sum total email data (html, text, attachments) handled for you via all your Mailmask aliases from the beginning of the month until the end of that month inclusive.
This includes email forwarded to your as well as any emails (e.g. replies) you send back to senders via Mailmask.
If you exceed your monthly bandwidth limit we will notify you by email, asking you to upgrade to a payment plan which has a higher monthly bandwidth limit.
No problem! Visit our help and support page to find out how you can get in touch with us.
For more answers, please visit our FAQ page.