Bbox (Bouygues Telecom) is a French ISP mailbox. Across 47,494 Bbox (Bouygues Telecom) addresses verified by BounceZero between April and October 2026, 0.0% were invalid, 0.0% catch-all, 5.5% unknown and 38.1% confirmed valid. The verdicts are reliable and can be acted on directly.
Every Bbox (Bouygues Telecom) address BounceZero verified for customers between April and October 2026, beside the corpus benchmarks. The remainder of each row to 100% is risky and role results.
| Segment | Addresses | Invalid | Catch-all | Unknown | Confirmed valid |
|---|---|---|---|---|---|
| Bbox (Bouygues Telecom) | 47,494 | 0.0% | 0.0% | 5.5% | 38.1% |
| All non-freemail domains (business and ISP) | 6,514,884 | 14.5% | 2.3% | 27.0% | 32.6% |
| Business domains only (consumer ISP and freemail excluded) | 1,269,919 | 22.9% | 9.4% | 22.5% | 40.3% |
| All freemail | 1,415,154 | 17.6% | 1.1% | 2.1% | 74.0% |
| All .fr addresses | 119,582 | 12.1% | 0.5% | 9.3% | 47.5% |
Non-freemail includes consumer ISP mailboxes; a business-only cut is on the benchmarks page. Method and every other cut: Lead List Quality Benchmarks 2026. Risky and role on the Bbox (Bouygues Telecom) row: 56.3%.
Bouygues answers probes in a way that confirms very few addresses as invalid but leaves a large share in the risky band, so the simple valid and invalid columns understate what is going on. The unknown share is modest. French ISP mailboxes are stable but rarely used for business.
Bbox is the brand of Bouygues Telecom's broadband service and its mailboxes are tied to the subscription. The gateway classifies many probes into a band that BounceZero reports as risky rather than valid or invalid, so the headline columns understate what is known about the segment. France's CNIL requires consent for commercial email to individuals and allows business-to-business prospecting with an opt-out, which places most bbox.fr contacts in the consent group.
On confirmed-invalid rate, Bbox (Bouygues Telecom) ranks 29 of 29 providers in the corpus, just behind Alice (TIM) at 1.0%.
On unknown rate, Bbox (Bouygues Telecom) ranks 18 of 29 providers in the corpus, just behind Telefónica at 8.0%, ahead of TPG at 5.1%.
On confirmed-valid share, Bbox (Bouygues Telecom) ranks 11 of 29 providers in the corpus, just behind SFR at 42.2%, ahead of MindSpring at 30.3%.
How to read these rates: they are BounceZero's probe outcomes on customer lists over April to October 2026, not a census of Bbox (Bouygues Telecom) mailboxes. Unknown and catch-all measure what verification could not confirm, which depends on the provider's gateway policy during the window as much as on the addresses. The lists are the ones customers chose to upload, so segments dominated by a few large uploads carry their age and source. Method and limitations: benchmarks page.
Bbox (Bouygues Telecom) rarely returns unknown. When it does, re-check once; a second unknown usually means a dormant mailbox.
At 0.0%, Bbox (Bouygues Telecom) loses fewer addresses to hard failures than almost any segment; the ones that fail are typos and closed accounts.
Catch-all is negligible on Bbox (Bouygues Telecom) (0.0%); when this provider does return valid, the mailbox accepted the probe itself rather than a blanket accept.
38.1% of Bbox (Bouygues Telecom) addresses confirmed as deliverable at verification time and can go straight to the primary sequence, with a re-check before every send.
Note the risky and role share: 56.3% of Bbox (Bouygues Telecom) results landed there, which the four headline columns do not show. Read risky as 'deliverable but with a flag' and test it at low volume before trusting it.
Read the risky classification on bbox.fr results, not just valid and invalid. Route risky addresses to a warm, low-volume send and measure bounces before scaling.
Role addresses such as info@ and sales@ make up 0.0% of Bbox (Bouygues Telecom) addresses in the corpus. Role addresses are rare here, as expected for a mailbox provider.
0.0% of 47,494 Bbox (Bouygues Telecom) addresses verified by BounceZero between April and October 2026 were confirmed invalid, against 14.5% across non-freemail domains and 17.6% across freemail.
5.5%. Unknown means the mailbox could not be confirmed either way, usually because the gateway deferred the probe. BounceZero refunds unknown results; on Bbox (Bouygues Telecom) it is rare enough to re-check once and move on.
Not in practice: 0.0% of Bbox (Bouygues Telecom) addresses returned catch-all, so a valid verdict means the mailbox exists.
38.1% confirmed valid at verification time. Keep bounces under 2% and complaints under 0.3% on the send, and re-verify the segment before every send.
Upload the file and see valid, invalid, catch-all and unknown per row, with the Bbox (Bouygues Telecom) segment against this benchmark. 100 free checks a month, unknowns refunded.
Ayoub built BounceZero's 5-stage validation pipeline, its dedicated BGP-announced IP infrastructure, and the Patroni HA PostgreSQL cluster behind every verification. Previously built high-volume email delivery infrastructure. Trained at 1337 Benguerir (École 42 network, 2019). Open-source: bgp_analyzer.
Invalid, catch-all and unknown rates per email provider and country domain, 2026
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