Email Center credits and the daily limit: what a credit pays for and when it comes back

E-mail·· 52 views· 3 min read

The short answer: one credit is one e-mail to one recipient. Email Center is prepaid with no monthly fee: you buy credits and pay only for the e-mails you send. Suppressed recipients are not charged, a failed e-mail gives its credits back, and a scheduled one is only charged when it goes out. Each account also has a daily sending limit.

What uses credits and what does not

Situation Credits
An e-mail with one recipient 1
An e-mail with to, cc and bcc, four addresses in all 4
A recipient on the suppression list 0: removed before sending
An e-mail that ends up failed The credits go back to the balance
A scheduled e-mail Only when it goes out. Cancel it first and you pay nothing
Any send with a Sandbox key 0

Checking your balance

The balance shows on the Transactional e-mail page in My MozOut. Through the API, GET /v1/email/balance returns:

Field What it says
balance Credits available, in e-mails
scheduled_credits Credits for scheduled e-mails that have not gone out yet
daily_limit and sent_today Your account’s daily limit and how many you have sent today
test_mode true while Email Center is not sending for real

The daily limit

The daily limit protects your account and everyone’s reputation: a buggy system that repeats sends cannot fire off thousands of e-mails before anyone notices. Your account’s value is on the page and in daily_limit. Once you reach it, further sends are refused with daily_limit_reached. If your normal volume needs more, open a support ticket.

Buying credits and pricing

You pay per e-mail sent, with a volume discount: the more credits, the lower the price of each. Tell us how many e-mails you send a month and we will prepare a proposal. Payment uses the same payment methods as your other services, and the credits are added once the payment is confirmed.

Check your balance before a big send. In a batch send, if credits run out part-way, the remaining messages are refused with insufficient_credits.
Turning it off does not wipe the balance. If you stop using Email Center, the balance is kept and you can turn it back on whenever you like, at no cost.

Want to know what your e-mails would cost? Tell us how many you send a month and we will prepare a proposal.

Ask for a proposal

SEE ALSO

To, Cc, Bcc and Reply-To in transactional e-mail: how many recipients and what each one costs

Sending transactional e-mails in a batch: one request, many messages and the result of each

Scheduling a transactional e-mail with send_at, and cancelling it before it goes out

The Email Center suppression list: why an address stops receiving and how to remove it

Email Center statistics: delivery, bounce and complaint rates, and what they tell you

Transactional e-mail: the invoices, confirmations and password resets your system sends on its own

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