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According to Live Direct Marketing's daily DNS scan (July 26, 2026), colibrilearning.xyz (Tranco rank #168,948) receives mail via Microsoft 365 and sends through Barracuda Essentials. Its observed DMARC policy is p=none (monitoring). Policy alone does not establish inbox or spam placement.
Last updated: .
| Mailbox provider (MX) | Microsoft 365 |
|---|---|
| ESPs in SPF | Barracuda Essentials |
| SaaS senders in SPF | Qualtrics |
| DMARC policy | p=none |
| DMARC record | v=DMARC1; p=none; |
| Tranco rank | #168,948 |
| Snapshot | 2026-07-26 (updated daily) |
MX identifies the observed inbound mailbox or gateway. SPF includes identify services authorised to send for the domain. DMARC shows the published authentication policy. The dataset currently contains 4 populated signal groups for this page.
Observed deliverability context: based on the available observations, this page describes DNS configuration only. It does not represent a complete audit of colibrilearning.xyz and does not prove that a particular message reaches the inbox or spam folder.
colibrilearning.xyz uses Microsoft 365 for inbound mail (detected from its primary MX record) as of July 26, 2026, per Live Direct Marketing's daily Tranco top-1M scan.
colibrilearning.xyz authorises Barracuda Essentials in its SPF record as of July 26, 2026.
No — colibrilearning.xyz publishes p=none, which only monitors and does not block spoofing (as of July 26, 2026).
Same daily dataset, three views: how its mailbox provider is trending, how strict DMARC is at its position in the list, and where its own policy sits among all DMARC publishers in the dataset.
The two ways an SPF record silently stops working. Counted from the published record; include chains are resolved one level deep, so the lookup count is a lower bound.
Adoption of the records that go beyond SPF and DMARC. Shown for the whole snapshot — per-domain detail lives on the security posture report.
The same snapshot cut by zone, by list position and by how alive the published policies are.
Nearby domains in the Tranco ranking: kanazawa21.jp · moon7avoidss.shop · rforrabbit.com · garaget.org
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