Disposable mailboxes are refused outright

The requirementstatement

The brand contact email must not be on a disposable or temporary mail domain.

Severityseverity: BlockingBLOCKINGBreaking this rule gets the submission rejected. There is no partial credit.
When it bitesphase: Gates approvalapprovalGet this wrong and the brand or campaign is refused at registration.
What is checkedobject: brand.email
Where it liveslayer: BrandBRAND
How Ekas settles itdetectability: DeterministicDETERMINISTICExternal recordEXTERNAL_DATA; Settled in code from the values you submitted. No model involved, no judgement call, same answer every time. The fact that settles it lives in a register we cannot query, such as the IRS file, a postal database, or another provider’s tenant. Reported as a warning with the evidence to check, not as a pass.
What the fix involvesfailureClass: Fix the fieldRETRY_FIELD; A better value in the form fixes it. Ekas can rewrite it and re-check.
Who requires itauthorities: TwilioTCRVonage
When it appliesapplicabilityText: Applies to every 10DLC registration.

Why this rule existsrationale

A throwaway address means nobody can be reached at the business tomorrow, which defeats the point of collecting a contact at all — and every verification message, PIN and carrier enquiry goes to it. It is refused rather than scored down, and it reaches the field honestly during testing, when somebody wanted a working address without using their own.

How to fix itremediation

Use a monitored mailbox on the business domain. If you are testing, register a mock brand (BRD-204) rather than a real one with a temporary address. Done when the address will still receive mail in six months.

A compliant exampleexample

email: support@acmecoffee.com — not a mailinator.com or 10minutemail.com address

Provider rejection codescodes

The code you get back when this rule is what failed, and whether that provider lets you resubmit.

Provider	Code	Resubmit
Twilio	30753	Yes
Twilio	30701	Yes

Check this yourselfattestation

Ekas flags this from what you submit, but the fact that settles it sits somewhere only you can reach.

Will this mailbox still receive mail in six months, and is it monitored by someone at the business?

1Confirm the domain is the business's own, not a temporary or disposable mail service. The provider's blocklist is maintained externally and changes constantly, so passing our check is not proof it is off theirs.
2Testing rather than registering? Use a mock brand instead of a real one with a throwaway address.

What wrong looks like: A temporary address entered during testing reaches production. Every verification message, PIN and carrier enquiry goes to a mailbox that no longer exists, and the brand is refused rather than scored down.

Notesnotes

Absorbs BRD-079, which states the same requirement for sole-proprietor brands. The check carries the well-known disposable providers; the full list is maintained externally and changes constantly, so a domain passing here is not proof it is off the provider's list — the user still has to use a mailbox the business genuinely keeps.

Rules you will hit next

3 other rules read brand.email. Fixing one field to satisfy a single rule is how a resubmission trades one rejection for another, so read these before you change anything.

BRD-108The brand support email must be well formedBlockingBLOCKING BRD-109Brand contact email must not use a free consumer domainBlockingBLOCKING BRD-112Brand contact email must not be a role or distribution addressHighHIGH BRD-001A legal company name is required for every entity but a sole proprietorBlockingBLOCKING BRD-002Legal name must match the IRS record for the EINBlockingBLOCKING BRD-003Legal name must carry its exact entity suffix as filedBlockingBLOCKING

All brand rules

BRD-114 is one of 196 brand rules in the 915-rule 10DLC registry. Free to cite under CC BY 4.0.