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

E-mail·· 10 views· 3 min read

The short answer: addresses on the suppression list never receive your e-mails. They join on their own after a permanent bounce or when the recipient marks you as spam, and you can add others by hand. Before every send they are removed, are not charged and are listed in suppressed in the answer.

Why it exists

Carrying on sending to an address that does not exist, or to someone who has already called it spam, is the fastest way for receiving servers to stop trusting your domain. The list stops those sends for you and protects the reputation of everything you send. More on reputation in a new domain sending e-mail.

How an address gets on it

Reason (reason) When
bounce A permanent bounce: the mailbox does not exist or the domain takes no mail
complaint The recipient marked the e-mail as spam
manual You added it, for example because the customer asked to stop receiving

Viewing, adding and removing

What you want In My MozOut Through the API
See the list Suppressions, on the Transactional e-mail page GET /v1/email/suppressions
Suppress an address Suppress an address POST /v1/email/suppressions, with email and a note
Remove one Unsuppress DELETE /v1/email/suppressions/{email}

For DELETE, the address is URL-encoded in the path: ana%40example.com instead of ana@example.com.

Do not remove addresses in a hurry. Take one off the list only when you know the problem is over: the customer fixed the mailbox, or asked to receive again. A spam complaint removed for no reason counts against you again.

When every recipient is suppressed

If every recipient of an e-mail is on the list, nothing is sent or charged: the API answers 422 with the reason all_recipients_suppressed. It is a sign your system holds an old address for that customer.

Keep your system up to date. When a send comes back with addresses in suppressed, flag them in your system and ask the customer for a new address next time they sign in.

Is an address suppressed that should not be? Open a support ticket.

Open a support ticket

SEE ALSO

Transactional e-mail statuses: sent, delivered, bounced, complained and failed explained

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

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

A new domain sending e-mail: how to build a reputation without landing in spam

Your domain or IP is on a blacklist: how to check and how to get off it

Bounce message 550: user unknown, relay denied and rejected, what each one means

RECOMMENDED PRODUCT

Web hosting with cPanel

Domain and SSL included, daily backups and the panel you already know. from KSh858.00/mo (3-year plan, with coupon)

See plans
Was this answer helpful? Your answer helps us improve this article.

Related Articles

E-mail 2,775 How to access your webmail You don't need to install anything to check your e-mail - the webmail works straight from your browser, on any device. A...
E-mail 2,517 How to set up your e-mail on Android Set your e-mail up once on Android and it keeps syncing in the background, on Wi-Fi or mobile data. Setting it up 1 Open...
E-mail 2,057 How to set up your e-mail on iPhone or iPad The Mail app on iPhone and iPad can hold your professional e-mail alongside any personal accounts, each syncing independ...
E-mail 2,418 How to set up your e-mail in Thunderbird Thunderbird can detect this server's settings automatically - you only need to type your name, e-mail and password. Auto...
E-mail 1,579 How to set up your e-mail in the new Outlook for Windows The new Outlook for Windows tries to configure itself automatically. If it can't, it falls back to the same manual setti...
E-mail 11 Email Center statistics: delivery, bounce and complaint rates, and what they tell you The short answer: statistics show your sends by status and by day, with three rates: delivery, bounce and complaint. You...